The graph represents the distribution of the number of questions answered correctly on a 50-question math test.What is the standard deviation of the data? 4 8 12 24

Answers

Answer 1

The standard deviation is a measure of dispersion.

What is standard deviation?

Standard deviation is a measure of dispersion. Measures of dispersion show how numbers are scattered around the mean. The question is incomplete hence the graph was not showed.

However, the shape of a normal curve is much dependent on the standard deviation of the data set.

Learn more about standard deviation: https://brainly.com/question/12402189

Answer 2

Answer:

a.4 or A

Step-by-step explanation:


Related Questions

Mr. Massy started baking cupcakes at 7:15 a.m. The cupcakes finished baking at 7:40 a.m. How long did it take the cupcakes to bake?

Answers

Answer:

25 minutes

Step-by-step explanation:

If the cupcakes started baking at 7:15, then it takes 25 minutes to get to 7:40.

Answer:

he took 25 min

Step-by-step explanation:

40-15 =25

help me please asap​

Answers

Answer:

[tex]-\dfrac{11}{12}[/tex]

Step-by-step explanation:

[tex]\dfrac{\frac{5}{8}+\frac{3}{4}}{\frac{-2}{3}-\frac{5}{6}}[/tex]

Find common denominators:

[tex]\dfrac{\frac{5}{8}+\frac{6}{8}}{\frac{-4}{6}-\frac{5}{6}}=[/tex]

[tex]\dfrac{\frac{11}{8}}{\frac{-9}{6}}=[/tex]

[tex]\dfrac{11}{8}\cdot -\dfrac{2}{3}=-\dfrac{11}{12}[/tex]

Hope this helps!

What is the average rate of change for this function for the interval from x = 2
to x= 4?
1
A.1/12
B. 6
C. 12
D.1/6

Answers

B because (16-4)/2=6

I always get confused on this Topic can someone help me

Answers

Answer:

angle C = 50 degrees

Step-by-step explanation:

The measure of an inscribed angle is always 1/2 of the arc measure.

The graph of quadratic function k is shown on the grid.
у
Which statements are best supported by the graph of k?
11
10
I. The x-intercept is located at(-3,0).
II. The coordinates of the y-intercept are(0,9).
III. The axis of symmetry 15 X=-3.
F I and II only
G I and III only
HII and III only
J
I, II, and III

Answers

Answer:

The answer is I, II, and III.

Step-by-step explanation:

Answer: I , II , III

Step-by-step explanation:

The expression on the left side of an equation is shown below.

3(x+1)+9=0

If the equation has no solution, which expression can be written in the box on the other side of the equation?

3[x+4)

2[x+8)+x

4(x-3) -

03(x+1)+9x

Answers

Answer:

A. 3(x + 4)

Step-by-step explanation:

All we have to do to get the expression on the other side is to expand the bracket on the left and factorise the expression.

The equation given is:

3(x + 1) + 9 = 0

Expanding the left hand side and factorising:

3x + 3 + 9

=> 3x + 12

=> 3(x + 4)

Therefore, the expression that can be written on the other side is 3(x + 4)

Answer:

C

Step-by-step explanation:

just finished it on edge and got a 100 :)

Last week, Ms. Herald walked 1.6 miles for 3 nights last week. She walked an
additional 3.1 miles on Saturday. How many miles did she walk last week? *
Your answer
Send me a copy of my responses.
Submit​

Answers

Answer:

1.6 + 1.6 + 1.6 + 3.1 = 7.9 miles walked

From the planet Earth, the moon is about 22(4) miles away while Neptune is about 22(7) miles away from Earth. How much greater is the distance from Earth to Neptune than the distance from Earth to the moon?

Answers

Answer:

Subtract.

Step-by-step explanation:

44 is equal to 8 times a number minus 4. what is the number?

Answers

Answer:

6

Step-by-step explanation:

Let "a number" = x

44 = 8x - 4

Simplify. Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First add 4 to both sides:

44 (+4) = 8x - 4 (+4)

44 + 4 = 8x

48 = 8x

Isolate the variable, x. Divide 8 from both sides:

(48)/8 = (8x)/8

x = 48/8

x = 6

6 is your answer.

~

Answer:The number is 6.

Step-by-step explanation:

8n - 4 =44

    +4     +4

8n =48

n=6

Trinomial in factored form 5y^2-y-18

Answers

Answer:

Step-by-step explanation:

(5y + 9)(y - 2) is the solution

5y^2 - 10y + 9y - 18

Answer:

(5y+9)(y-2)  i think

Which triangle is it? WILL GIVE BRAINLIEST!!!!

Answers

Answer:

B

Step-by-step explanation:

Phythogorean theroem is only applicable for right angled triangle meaning the triangles having at least 1 right angle.

Since,B has one and others don't.Pythagorean theroem is applicable for it.

Therefore,The triangle is B

yes the correct answer is b

What is the probability of spinning blue on the image shown?
ITS ON THINK THRU MATH NEED HELP

Answers

Answer:

So for the first spinner, the probability of the arrow pointing to blue on a spin is 1/4, the probability of it pointing to green is 1/4 and so on. This assumes that each section is the same physical size.

Step-by-step explanation:

Answer:

Where is the picture

Step-by-step explanation:

you can choose more than 1

Answers

Answer:

A

Step-by-step explanation:

If you were to multiply the top by 7 then add you would cancel out the x and if you were to multiply the bottom by 6 then when you use the subtraction method you multiply the top by negative and if that were to happen you would do -6x + -6x which would cancel nothing out. But if you just add the two equations nothing would cancel out.

Hope this helped!

Answer:

A

Step-by-step explanation:

If you multiply the top by 7, when you add you can cancel out -7x and 7x. The second one doesn't work because it said subtract at the end. If you subtract then it won't cancel out the y's.

is (3, 2) a solution of -8x-2y<6?
Choose 1 answer:

Answers

Answer:

Yes

Step-by-step explanation:

-8x-2y<6 (I prefer to convert this into standard form y=mx+b)

-8x+8x-2y<8x+6

-2y/-2>8x+6/-2

y > -4x -3

2 > -4(3) - 3

2 > -12 - 3

2 > -15 True or Yes

what are the dimensions of a square with a perimeter of 48 inches

Answers

Answer:

Each side is 12 inches long. The area is 144 square inches.

Answer:

12 by 12 inches

Step-by-step explanation:

12 times 4  (congruent) sides =48

2. You deposit $1200 into a bank account. Every year that accounts increase by 15 %.
a) Identify whether this an Exponential Growth or Decay function and write the equation of the
function

Answers

Answer:

Exponential Growth, 1200(1.15)

Step-by-step explanation:

It is a Growth function because it is "increasing" yearly. The equation is multiplying with 1.15 because when it is increasing, you need to add 1 to the percentage rate.

A bag contains 3 red, 4 blue, and 6 yellow marbles. One marble is selected at a time, and once a marble is selected, it is replaced. Find each probability. P(red and yellow)

Answers

Answer:

red = 3/13

yellow = 6/13

blue= 4/13

Step-by-step explanation:

breainliest really needed!!

The probability of selecting the red marble and yellow marble is 18/169.

What is the probability?

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

Given that, a bag contains 3 red, 4 blue, and 6 yellow marbles.

Total number of outcomes = 3+4+6=13

Probability of selecting red marble = 3/13

Probability of selecting yellow marble = 6/13

So, P(red and yellow) = 3/13 × 6/13

= 18/169

Therefore, the probability of selecting the red marble and yellow marble is 18/169.

To learn more about the probability visit:

https://brainly.com/question/11234923.

#SPJ2

please help and explain i will mark brainliesttt!

Answers

JIH= QRP
they’re the same shape.

A functiom is graphed on the coordinate plane.

What is the value of the function when x=4?​

Answers

Answer: The answer is 2. Go open of the x line 2 then it lines up with the y.

Answer:

I thought it was 1

Step-by-step explanation:

I will give you all five stars ⭐⭐⭐⭐⭐

Answers

Answer:

Step-by-step explanation:

the answer is a becuase it doesnt explain anything about being conguent

2 divided by one over 3 the awnser is a fraction

Answers

Answer:

1/6

Step-by-step explanation:

2/1÷  1/3 (First make 2 a fraction, because 2= 2/1 we will use 2/1)

1/2÷  1/3 (Now we flip the numerator and denominator on a fraction)

1/2 (1/3) (Now we multiply straight across numerator times numerator, denominator times denominator)

1/6 (This is our answer!)

Hope this helped! Stay safe and have a good day or night!

HELP I do not understand.

Answers

There is no mode

because none of them appear the most

Answer:

no mode

Step-by-step explanation:

Amelia has a savings account that has an annual yield of 5.2%. Find the balance of the account after each of the first five years if
her initial balance is $2000.​

Answers

Answer:

Balance of the account after 5 year = $2,577 (Approx)

Step-by-step explanation:

Given:

Initial deposit = $2000

Annual yield (r) = 5.2% = 5.2 / 100 = 0.052

Number of year (n) = 5 year

Find:

Balance of the account after 5 year = ?

Computation:

[tex]Amount = Initial\ deposit(1+r)^n\\\\Amount = 2,000(1+0.052)^5\\\\Amount = 2,000(1.052)^5\\\\Amount = 2,000(1.28848302)\\\\Amount = 2,576.96604[/tex]

Balance of the account after 5 year = $2,577 (Approx)

If you need 4 tables spoons of golden syrup to make 10 cupcakes, how many tables spoons of golden syrup will you need to make 4 cupcakes.​

Answers

Answer:

1.6 tablespoons

Step-by-step explanation:

Let’s make a proportion

syrup/cupcakes=syrup/cupcakes

4 tablespoons are needed for 10 cupcakes and x tablespoons are needed for 4 cupcakes.

4/10=x/4

Now we have to solve for x. x is being divided by 4. To reverse this, multiply both sides by 4, because multiplication is the opposite of division.

4*4/10=x/4*4

The 4s on the right will cancel, so we are left with:

4/4*10=x

1.6=x

So, 1.6 tablespoons are needed for 4 cupcakes.

Identify which type of correlation the given scatterplot possesses, if a correlation exists.


no correlation
positive correlation
negative correlation
correlations impossible to determine

Answers

Answer: no correlation

Step-by-step explanation: because you only have 3 types of correlations in a scatter plot——-positive, negative or none

help please math please

Answers

Answer:

25

Step-by-step explanation:

Help! Please answer the question below!

Answers

Ummm I don’t really know

PLEASE HEP ASAP!! BRAINLIEST

What is the scale factor for this dilation? Show your work!

Answers

Answer:

2/3

Step-by-step explanation:

Distance MS = √[(6-(-3))²+(3-3)²]= 9

Distance M'S' = √[(4-(-2))²+(2-2)²] =6

scale factor = |M'S'| /|MS|= 6/9 = 2/3

Which list shows the numbers in descending order?
A. -2.5, -2.25, 2.75
B. -2.25, -2.5, 2.75|
C. -2.5, 2.5, -2.75]
D. 2.75,-2.5), -2.25

Answers

Answer is D 2.75,-2.5,-2.25

Answer:

Step-by-step explanation:

Solve 6-x=4(5+x)-4 what would the answer be

Answers

Answer:

x = -2

Step-by-step explanation:

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Tensions between the Lowcountry and Backcountry increased over the issue of representationThis list of notes would be MOST useful to a student writing a research paper titledA)"South Carolina's Transition from Proprietary Rule to a Royal Colony."B)"South Carolina's Transition from a Royal Colony to Proprietary Rule."C)"Reasons for the Division of the Colony into North and South Carolina."D)"Factors Leading to the Rise of the Regulator Movement in South Carolina." Which consequence of global interdependence is accurate?A) the denial of basic human rights to citizens in countries where despotic rulers try to maintain their grip on powerB) the use of only those natural resources that are most prevalent within a nations bordersC) the development of trade and cooperation among many different countriesD) the establishment of central banks and fiscal policies that seeks to promote economic growth in a single nationI NEED HELP PLZ!!! what's 72/35(26) One of Lyndon B. 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