Put brackets into this calculation to make it correct.
6 x 1.5 + 4.9 x 4 = 55.6

Answers

Answer 1

Answer:

(6 x 1.5 + 4.9) x 4 = 55.6

Step-by-step explanation:


Related Questions

What percentage of K25 is 25t​

Answers

The percentage K 25 that is 25 t, can be found to be 1 % .

How to find the percentage ?

The relationship between K and t is such that 1 K has 100 t.

This means that K 25 in terms of t, would be:

= 25 x 100

= 2, 500 t

The percentage of K that is 25 t is therefore :

= 25 / 2, 500

= 1 / 100

= 0. 01

= 1 %

In conclusion, when given the values K 25 and 25 t, then 25 t would be  1 % of K 25.

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A kangaroo hopped 3,5203,5203, comma, 520 yards to the lake with her baby in her pouch. She hopped the remaining 5,2805,2805, comma, 280 yards without her baby in her pouch.
How many miles did the kangaroo hop to the lake?

Answers

Answer:

so im a little confused  3,5203,5203, is not a proper number and there is not enought yards to make a full mile could you reword it?

Step-by-step explanation:

Triangle NGM is reflected across the x-axis, and is dilated by a factor of 2
1
2
. The dilation center is the origin.

Answers

Dilation Starting with our fundamental equation, x^2+y^2=r^2, we can dilate a circle. The point can be found by multiplying the parameters of the vertices in the bounding box by the scale factor when distorting a figure that is centered at the origin.

What does triangle mean?

A triangle is made up of three vertices, three angles, and three sides. A triangle's internal angles add up to 180 degrees. The triangle's third side is longer than the two sides added together. The base plus the height multiplied by half equals the triangle's area.

What are a few examples of dilation?

Dilation refers to a change in size without a change in shape of an object. Depending on the scale, the object's size could grow or shrink.

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Problem #1 - Luca went
grocery shopping for
some last-minute picnic
supplies. He knows that
the sliced turkey was
$3.50 per 1 1/4-pounds
and coleslaw was $1.35
per 1/2 pound. How
much would it cost him if
he bought 3 pounds of
turkey and 1 1/2 -pounds
of coleslaw?
Problem #2 - Fill in the
Why?

Answers

The required it would cost $12.45 to buy 3 pounds of turkey and 1 1/2 pounds of coleslaw.

What are expression models?

The expression model is defined as the model of the given situation in the form of an equation using variables and constants.

Here,
To calculate the cost of the turkey, we need to find the price per pound and then multiply it by the number of pounds. The price per pound is,

= $3.50 ÷ (1 1/4 pounds)
= $2.80 per pound

To find the cost of 3 pounds of turkey, we can multiply the price per pound by the number of pounds:

= 3 pounds × $2.80 per pound = $8.40

To find the cost of the coleslaw, we can simply multiply the price per half pound by the number of half pounds,

1 1/2 pounds = 3 half pounds

= 3 half pounds × $1.35 per half pound
= $4.05

Finally, we can add the cost of the turkey and the coleslaw to find the total cost:

$8.40 + $4.05 = $12.45

Therefore, it would cost $12.45 to buy 3 pounds of turkey and 1 1/2 pounds of coleslaw.

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Translate the following sentence into an equation: "The product of 3 and x increased by 7 equals 25 ."

Answers

3x+7=25 I hope this helps:)

Which graph represents the solution to the inequality −0.25 is greater than or equal to the product of a number and −0.5?

number line with a closed circle on 0.5 with an arrow shaded right
number line with an open circle on point on negative 0.5 with an arrow shaded left
number line with a closed circle on negative 2 with an arrow shaded right
number line with an open circle on 2 with an arrow shaded left

Answers

As we can see from graph for given linear inequality -0.25≥-0.5x, the graph will be a number line with a closed circle on 0.5 with an arrow shaded right.

What exactly are linear inequalities?

Inequality is a mathematical statement in which neither side is equal. In Math, an inequality occurs when a connection produces a non-equal comparison between two expressions or two integers. The equal sign "=" in the phrase is substituted by any of the inequality symbols, such as greater than symbol (>), less than symbol (<), greater than or equal to symbol (≥), less than or equal to symbol (≤), or not equal to symbol (≠). In mathematics, there are three types of inequalities: polynomial inequalities, rational inequalities, and absolute value inequalities.

The symbols "< and '>' represent severe inequalities, whereas  ‘≤’ and ‘≥’  represent slack inequalities. A linear inequality appears to be the same as a linear equation, however there is a difference.

Now,

Given linear inequality is -0.25≥-0.5x

0.25≤0.5x

1/4≤1/2x

x≥1/2

hence,

        graph will be a number line with a closed circle on 0.5 with an arrow shaded right.

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in a magnetometry experiment, after a minute of collecting data the statistical noise was reduced to 1 picotesla. for how many more minutes should data be collected in order to reduce the random error by a factor of 10

Answers

In a magnetometry experiment, It will take 1 more minute for data be collected in order to reduce error the statistical noise by a factor of 10.

To reduce the random error by a factor of 10, we need to reduce the statistical noise to 1/10 picotesla. Since the statistical noise was initially 1 picotesla, this means we need to reduce it by a factor of 10.

We can use the following formula to calculate the time needed to reduce the statistical noise by a certain factor:

t = (log (final noise / initial noise)) / (log (reduction factor))

Here, the final noise is 1/10 picotesla, the initial noise is 1 picotesla, and the reduction factor is 10.

Plugging in these values, we get:

t = (log (1/10 / 1)) / (log (10))

t = (log (1/10)) / (log (10))

t = -1 / 1

t = -1

The negative value of t doesn't make sense in this context, so we need to take the absolute value:

t = |-1|

t = 1

Therefore, it will take 1 more minute to reduce the statistical noise by a factor of 10.

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____The given question is incomplete, the complete question is given below:

Reduction of the standard error

In a magnetometry experiment, after a minute of collecting

data the statistical noise was reduced to 1 picotesla.

For how much longer should data be collected in order

to reduce the random error by a factor of 10?

When Jackie woke up, the temperature was 70 °F. For the next 5 hours, the temperature rose by 4 °F each hour. Write an equation in the form y = mx + b that Jackie can use to find the temperature x number of hours after she woke up.​

Answers

An equation to find the temperature after x number hours of waking up for Jackie is Temperature ( x ) = 4 x + 70

How to find the equation ?

The equation which takes the form y = mx + b means that in relation to the temperature when Jackie woke up:

y = current temperature after x hours

x = number of hours after waking up

m = change in temperature per hour

b = starting temperature when Jackie woke up

The equation to find the temperature after x hours is therefore:

Temperature ( x ) = 4 x + 70

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we now are using two z score formulas. the denominator is the standard deviation on the first one we learned. the denominator is the standard error on the second one we learned. how do you know which z score formula to use? g

Answers

The choice between using the standard deviation and standard error in the denominator of a z-score formula depends on the context of the problem and the type of data being analyzed.

To determine which z-score formula to use, consider the type of data and the context of the problem. If you have a sample with a known population standard deviation, use the first formula.  If the data represents a random sample of a larger population, the standard error is typically used to account for the variability in estimating the population mean. On the other hand, if the data represents the entire population, the standard deviation is used as the denominator. It's important to understand the distinction between a sample and a population and to choose the appropriate formula accordingly.

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1. What must the values of a and b be for PQRS to be a parallelogram?


2. The diagonals of parallelogram ABCD intersect at P. Select all the statements that must be true.

Answers

The value of a and b are; a = 2, b = 4

What is a parallelogram?

That quadrilateral in which opposite sides are parallel is called a parallelogram.

Given that the diagonals of parallelogram ABCD intersect at P.

4a +  b  = 2a + 8

4a - 2a + b = 8

     2a + b = 8 -----------------(I)

            b = 8 - 2a

11b - 10a = 6b

11b - 6b -10a = 0

5b - 10a = 0 ---------(II)

Substitute b = 8 - 2a  in equation (II)

5(8-2a) - 10a = 0

40 - 10a - 10a = 0

40 - 20a       = 0

-20a = - 40

a = -40/-20

a = 2

Plugin a = 2 in equation (I)

b = 8 -4

b = 4

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Riley is training to compete in a marathon, following a training plan recommended by her favorite running podcast. She plans to run 12 miles in her first week of training and will increase her mileage by about 10% each week after.
Write an exponential equation in the form y=a(b)x that can model Riley's target mileage per week, y, x weeks after she starts training.
Use whole numbers, decimals, or simplified fractions for the values of a and b

Answers

The exponential function that shows Riley's target mileage is y = 12(1.1)ˣ

What is an equation?

An equation is an expression that shows how numbers and variables are linked together using mathematical operations such as addition, subtraction, multiplication and division.

The standard exponential equation is:

y = abˣ

where b is the rate of change and a is the initial value.

Let y represent Riley target mileage x weeks after she starts training.

She plans to run 12 miles in her first week of training and will increase her mileage by about 10% each week after. Hence:

a = 12; b = 100% + 10% = 110% = 1.1

The exponential function is y = 12(1.1)ˣ

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is this true or false? 1 half n (n space plus log space n )space element of space omicron (n squared )true false

Answers

The statement is false.

O(nlogn), commonly known as loglinear complexity, denotes that n times will be required to perform logn operations.

The term "1 half n (n space plus log space n )space" is equivalent to O(n log n) which is a class of functions that grow asymptotically no faster than n log n.

On the other hand, the term "omicron (n squared)" is equivalent to o(n^2), which is a class of functions that grow asymptotically slower than n^2.

As a result, it is untrue to say that there is a single half-n (n space plus log n)space element in the omicron (n squared) space.

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The ratio of the sides of a triangle are 3:5:12. If the perimeter of the triangle is 100 units, determine the length of the shortest side.

Answers

The measure of the length of the shortest side will be 15 units.

What is a ratio?

If b is not equal to 0, an ordered pair of numbers a and b, denoted as a / b, is a ratio. How frequently one value contains or is contained within another is shown by the numerical connection between the two values.

Given that the perimeter of the triangle is 100 and the ratio of the sides of the triangle is 3:5:12.

The length of the shortest side will be calculated as:-

3x + 5x + 12x = 100

20x = 100

x = 20

Length = 3x

Length = 3 x 5 = 15 units

Hence, the shortest side will be 15 units.

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simplify (4x+5y)(2x-3y)+3xy

Answers

Answer: 8x^2 + xy - 15y^2

Step-by-step explanation:

first do the FOIL method than add 3xy to the equation after

Answer:

[tex]8x^2+xy-15y^2[/tex]

Step-by-step explanation:

[tex](4x+5y)(2x-3y)+3xy\\\\=(4x)(2x)+(4x)(-3y)+(5y)(2x)+(5y)(-3y)+3xy\\\\=8x^2-12xy+10xy-15y^2+3xy\\\\=8x^2+xy-15y^2[/tex]

**EASY POINTS** There is a circular running path in the park. The diameter of the circle is 350 m. What is the length of one lap around the park?

Answers

Answer:

1099

Step-by-step explanation:

350*pi=1099

I hate math why is this necessary

Answers

Answer:

3

Step-by-step explanation:

Slope = rise/ run    = change in y  / change in x  = 3 / 1 = 3

  this is VERY necessary in all of the engineering and physics worlds of which you have yet to be acquainted...... these fields enable you to have a smart phone, a car, a bank account, a computer , rockets etc.

10.a jar of 70 candies has the following colors: 28 orange, 7 white, 14 brown, and 21 yellow.what is the probability of randomly drawing a candy that is not brown, replacing it, and then drawing a white candy?

Answers

The probability of randomly drawing a candy that is not brown, replacing it, and then drawing a white candy is 0.08, or 8%.

There are 70 sweets in the jar, 14 of which are brown, hence the likelihood of getting a candy that is not brown on the first draw is:

(70 - 14) / 70 = 56 / 70 = 0.8 P(not brown)

The jar still has 70 candies after replacing the candy, and there are now 7 white candies. As a result, the likelihood of drawing a white candy on the second draw is:

P(white) = 0.1 / 70

Because the two drawings are independent (the first candy is replaced before the second), we can multiply the odds to get the likelihood of both events occurring:

P(not brown and white) = P(white) * P(not brown) = 0.8 * 0.1 = 0.08

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Consider the line y : 3x-8.
2
Find the equation of the line that is perpendicular to this line and passes through the point (8,
- 4).
Find the equation of the line that is parallel to this line and passes through the point (8, -4).

Answers

Answer:

Step-by-step explanation:

Perpendicular line will have a slope that is the negative reciprocal so slope of 3 becomes - [tex]\frac{1}{3}[/tex].

then use point slope:

y - y = m(x - x)

Use the 2 points (8, -4)

y - -4 = -[tex]\frac{1}{3}[/tex] (x - 8)

y + 4 = -[tex]\frac{1}{3}[/tex] (x - 8)

y + 4 = -[tex]\frac{1}{3}[/tex]x + [tex]\frac{8}{3}[/tex]

y + 4 - 4 = -[tex]\frac{1}{3}[/tex]x  - [tex]\frac{4}{3}[/tex]

y = - [tex]\frac{1}{3}[/tex]x - [tex]\frac{4}{3}[/tex]

Parallelline will have the same slope m = 3.

use point slope again

y - -4 = 3(x -8)

y + 4 = 3x - 24

y + 4 -4 = 3x - 24 -4

y = 3x -28

A used car lot sold 84 vehicles last month, and 8 of them were minivans. What is the experimental probability that the next vehicle sold will be a minivan?
Write your answer as a fraction or whole number.

Answers

Answer:

2/21

simplify 8/84

Answer:

The experimental probability of the next vehicle sold being a minivan is 8/84 = 1/10.

Step-by-step explanation:

The experimental probability of an event can be calculated by dividing the number of successful outcomes by the total number of trials. In this case, we want to find the probability of selling a minivan, so we want to find the number of minivans sold divided by the total number of vehicles sold.

Therefore, the experimental probability can be calculated as follows:

Number of minivans sold / Total number of vehicles sold = 8 / 84

So, the experimental probability that the next vehicle sold will be a minivan is 8/84.

jordan spends 75 minutes drawing & writing his comic book everyday. He draws for 25 minutes longer than he writes.

Answers

The number of minutes spent on drawing and writing a comic book will be 50 minutes and 25 minutes, respectively.

What is the solution to the equation?

In other words, the collection of all feasible values for the parameters that satisfy the specified mathematical equation is the convenient storage of the bunch of equations.

Let 'x' and 'y' be the number of minutes spent on drawing and writing a comic book, respectively. Then the equations are given as,

x + y = 75          ....1

x = y + 25         ....2

From equations 1 and 2, then we have

y + 25 + y = 75

2y = 50

y = 25 minutes

Then the value of 'x' is given as,

x = 25 + 25

x = 50 minutes

The number of minutes spent on drawing and writing a comic book will be 50 minutes and 25 minutes, respectively.

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Question : find the exact answer for the following. Then round off the first number to 100 places and the second to 10 places and estimate the answer, mention if the answer is reasonable or not.
A) 145.86 + 79.6
B) 2450.21 - 599.36
C) 922.58 - 398.99
D) 2351.85 + 89​

Answers

A) 145.86 + 79.6 = 225.46

Rounding off the first number to 100 places, 145.86 becomes 145.86000

Rounding off the second number to 10 places, 79.6 becomes 79.60000

So the rounded answer is 145.86000 + 79.60000 = 225.46000

Estimated answer: 225

The answer is reasonable.B) 2450.21 - 599.36 = 1851.05

Rounding off the first number to 100 places, 2450.21 becomes 2450.21000

Rounding off the second number to 10 places, 599.36 becomes 599.36000

So the rounded answer is 2450.21000 - 599.36000 = 1851.05000

Estimated answer: 1850

The answer is reasonable.C) 922.58 - 398.99 = 523.59

Rounding off the first number to 100 places, 922.58 becomes 922.58000

Rounding off the second number to 10 places, 398.99 becomes 398.99000

So the rounded answer is 922.58000 - 398.99000 = 523.59000

Estimated answer: 523

The answer is reasonable.D) 2351.85 + 89 = 2440.85

Rounding off the first number to 100 places, 2351.85 becomes 2351.85000

Rounding off the second number to 10 places, 89 becomes 89.00000

So the rounded answer is 2351.85000 + 89.00000 = 2440.85000

Estimated answer: 2440

The answer is reasonable.

Select a two-digit number whose 1st digit it 0,1,2,3, or 4, and whose 2nd digit is 5,6,7,8, or 9.

Answers

In 25 ways we can select 2-digit number from the given digits.

What is the Permutations?

Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set. The symbol nPr is used to denote the number of permutations of n distinct objects, taken r at a time.

Given that, a two-digit number whose 1st digit it 0,1,2,3, or 4, and whose 2nd digit is 5,6,7,8, or 9.

Number of ways selecting 1st digit is

P(5, 1) = 5!/(5-1)!

= 5

Number of ways selecting 2nd digit is

P(5, 1) = 5!/(5-1)!

= 5

Now, 5×5=25

Therefore, in 25 ways we can select 2-digit number.

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A line is drawn tangent to a circle of radius 8 with the origin as its center, passing through the paint (12,0). Find the point where the line touches the circle. NOTE: the tangent line will be perpendicular to the radical line from the origin to the tangent point. Use the relation between the slopes to find the point

Answers

The radius line intersects the circle at (4, 8) because the tangent line's slope, which is -1/3, is perpendicular to the radius line's slope of (0, 8), which is 0.

1. Use m = 0 to calculate the slope of the line through point (12, 0).

2. Calculate the radical line's angle between the origin and the tangent point: m = ∞

3. To determine the location where the line touches the circle, use the relationship between the slopes: M2 = -1/M1 = -1/0 = - since M1 M2 = -1

4. To determine a point's coordinates, use the equation for a circle: (x - 8)2 + (y - 8)2 = 82, so (4, 8) (4, 8)

We can use the relationship between the slopes of the tangent line and the radical line from the origin to the tangent point to determine the location where the line contacts the circle. Since the tangent line crosses through point (12,0), its slope is equal to zero. Since the radical line slopes at m2 =, m1 m2 = -1. Accordingly, m2 = -1/m1 = -1/0 = -∞.The coordinates of the spot where the line touches the circle can then be determined using the equation for a circle. (x - 8)2 + (y - 8)2 = 82 is the equation for a circle having the origin as its center and a radius of 8. The coordinates of the place where the line intersects the circle are (4, 8), which can be obtained by substituting in the values for m1 and m2.

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Boat
Boat A
Boat B
Cost
$2400
$2800
< Previous
Miles Per Gallon
(MPG)
15
18
Estimated Repairs
$600
$250
Stephanie wants to compare the total cost of buying and using these boats on her local lake.
Stephanie estimates she will drive the boat at least 40 miles per month.
The average cost of gasoline per gallon in her city is $3.89.
• Stephanie plans on owning the boat for 3 years.
Which boat will cost Stephanie the least to buy and use? How much will the difference in cost be?
Boat A will cost less for Stephanie. The difference in cost will be $400.
Boat B will cost less for Stephanie. The difference in cost will be $12.24
Boat A will cost less for Stephanie. The difference in cost will be $12.24.
O Boat B will cost less for Stephanie. The difference in cost will be $400.

Answers

The boat that will cost Stephanie less to buy and use is boat B, and the difference between the cost is $11.7.

How much will each boat cost?

Let's calculate first the cost of each boat:

Boat A

cost + repairs + gasoline for 3 years= total cost

2400 + 600 + gasoline cost

gasoline cost = 40 / 15 = 2.66 gallons per month x 36 = 95.76 X 3.89 = 372.5

2400 + 600 + 372.5 = 3,372.5

Boat B

cost + repairs + gasoline for 3 years= total cost

2800 + 250 + gasoline cost

gasoline cost = 40 / 18 = 2.22 gallons per month x 36 = 79.92 X 3.89 = 310.88

2800 + 250 + 310.88 = 3,360.88

Difference: 3,372.5 - 3, 360.88 = 11.7

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Discussion topic
read this article discussing the value of specific polling results in us presidential elections.
your thoughts about the
article, in particular, comment about what surprised you or what you
thought might be interesting to understand more deeply. Also comment about any
statistical
discussion or information that you are now better able to understand because of your
background in statistics.
give

Answers

Overall, the article has given me a deeper appreciation for the role that statistics plays in the political landscape.

One statistical discussion that stood out to me was the concept of margin of error. This is a measure of the accuracy of a poll and is calculated by taking into account the sample size and the variability in responses. I now have a better understanding of how pollsters use this measure to determine the reliability of their results.

Additionally, the article highlighted the importance of understanding statistical significance, which refers to the likelihood that a particular result occurred by chance. This is an essential concept in statistics that helps to determine whether a particular result is reliable or not.

It has also emphasized the need to interpret polling data with caution and to be mindful of the potential for errors and biases.

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Ann spent 50% of her allowance on food 30 % of it on stationary and saved the remaining amount her allowance was $15 how much money did she save

Answers

At the end, Ann saves a total amount of 3 dollars according to the money she spent and on allowance according to the percentages.

Total Allowance of Ann = 15 dollars

Spent on food by Ann = [tex]\frac{15}{100}[/tex]*50

On food = 50 × [tex]\frac{15}{100}[/tex] = 7.5 dollars

Spent on stationary = 30% of Allowance

On stationary = 30 X[tex]\frac{15}{100}[/tex] = 4.5 dollars

Therefore, Money saved by Ann = Total Allowance - Money spent

Money saved = 15 dollars - 7.5 dollars - 4.5 dollars = 15-(7.5+4.5) dollars

Money saved = 3 dollars

Therefore, money saved by Ann is 3 dollars.

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Question in picture! Thanks

Answers

Answer:

Step-by-step explanation:

A rectangle is 3/4 of a feet long and 5/12 of a feet wide. What fraction represents the area of the rectangle

Answers

The area of the rectangle can be expressed as a fraction by multiplying 3/4 and 5/12. The answer is 5/16, which represents the area of the rectangle.

1. Multiply the length and width of the rectangle: 3/4 x 5/12 = 15/48

2. Reduce the fraction to its simplest form: 15/48 = 5/16

3. The answer is 5/16, which represents the area of the rectangle.

To find the area of a rectangle, you need to multiply the length and width of the rectangle together. In this case, the rectangle is 3/4 of a foot long and 5/12 of a foot wide. To express the area as a fraction, you need to multiply the two fractions together. 3/4 x 5/12 = 15/48. Since 15 and 48 have a common factor of 3, the fraction can be reduced to its simplest form, 5/16. Therefore, the area of the rectangle can be expressed as 5/16. This fraction represents the area of the rectangle.

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The complete question is

A rectangle is 3/4 of a feet long and 5/12 of a feet wide. What fraction represents the area of the rectangle of a feet wide.

choose the best data type for each of the following so that any reasonable value is accommodated but no memory storage is wasted. give an example of a typical value that would be held by the variable, and explain why you chose the type you did.

Answers

a. The best data type for the number of siblings would be an integer.

An example of a typical value for this variable would be 3, as someone might have 3 siblings. An integer is the best data type because the number of siblings is a whole number and can never be a fraction or a negative number.

b. The best data type for the final grade in this class would be a floating-point number. An example of a typical value for this variable would be 85.5, as a final grade may include decimal points. A floating-point number is the best data type because a final grade can have a decimal point and may include fractions.

c. The best data type for the population of Earth would be a long integer. An example of a typical value for this variable would be 7,794,798,739, as of the year 2020. A long integer is the best data type because the population of Earth is a large number and cannot be expressed using a regular integer.

d. The best data type for the population of a U.S. county would be an integer. An example of a typical value for this variable would be 100,000, as the population of a county can vary greatly. An integer is the best data type because the population of a county is a whole number and can never be a fraction or a negative number.

e. The best data type for the number of passengers on a bus would be an integer. An example of a typical value for this variable would be 20, as a bus can carry a varying number of passengers. An integer is the best data type because the number of passengers on a bus is a whole number and can never be a fraction or a negative number.

f. The best data type for one player's score in a Scrabble game would be an integer. An example of a typical value for this variable would be 45, as a score in Scrabble is calculated in whole numbers. An integer is the best data type because a score in Scrabble is a whole number and can never be a fraction or a negative number.

g. The best data type for one team's score in a Major League Baseball game would be an integer. An example of a typical value for this variable would be 7, as a team's score is calculated in whole numbers. An integer is the best data type because a team's score is a whole number and can never be a fraction or a negative number.

h. The best data type for the year a historical event occurred would be an integer. An example of a typical value for this variable would be 1776, as the year the United States declared independence. An integer is the best data type because a year is a whole number and can never be a fraction or a negative number.

i. The best data type for the number of legs on an animal would be an integer. An example of a typical value for this variable would be 4, as many animals have four legs. An integer is the best data type because the number of legs an animal has is a whole number and can never be a fraction or a negative number.

j. The best data type for the price of an automobile would be a floating-point number. An example of a typical value for this variable would be $25,000.50, as a price for a car can include decimal points. A floating-point number is the best data type because the price of a car can have a decimal point and may include fractions.

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Sam asked 15 of his friends what they thought about the pizza they just had, is this a random or biased sample

Answers

The sample taken by Sam is Biased sampling.

What is Random sample?

A subset of a population is chosen at random in a basic random sampling. Each person in the population has an exact equal probability of getting chosen using this sampling technique.

Given:

Sam asked 15 of his friends what they thought about the pizza they just had.

Sam here chooses his friend that means the people are selective already.

He already chooses the people which were known to him.

So, the selection here is biased sample.

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