The two dot plots below show the heights of some sixth graders and some seventh graders:

Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there is 1 dot for the first mark, there are 3 dots above the second mark, 2 dots above the third mark.

The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.6. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)

0.3
1.2
1.7
2.0

The Two Dot Plots Below Show The Heights Of Some Sixth Graders And Some Seventh Graders:Two Dot Plots

Answers

Answer 1

Answer: 2.0  (choice D)

Reason:

We divide the two mean absolute deviation (MAD) values to get (1.2)/(0.6) = 2.0

The variability in the first set (the 6th graders) is exactly twice that of the variability of the second set (the 7th graders).

The MAD is one measure of variability or spread. Another would be the standard deviation. The larger the value, the more spread out the data points will be.


Related Questions

A shoe box has a volume of 64 cubic inches and a
surface area of 160 square inches. What is the surface
area of a similar shoe box if its volume is only 27 cubic inches? Show your work or explain how you got your answer


Answers

The surface area of a similar box given the ratio of volume to surface area of first box is 67.5 square inches

How to solve ratio?

Box A:

volume = 64 cubic inchesSurface area = 160 square inches

Box B:

volume = 27 cubic inchesSurface area = x

Volume : surface area

64 : 160 = 27 : x

64/160 = 27/x

64 × x = 160 × 27

64x = 4,320

x = 67.5 square inches

Therefore, the surface area of a similar box given the ratio of volume to surface area of first box is 67.5 square inches

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A 228
B 328
C 488
D 572

Answers

Answer:

G 328 ft

Step-by-step explanation:

[tex] \cos(angleBAC) = \frac{AB}{AC} [/tex]

[tex] \cos(55°) = \frac{AB}{400} [/tex]

AB = 229.431 ft

AB² + BC² = AC²

229.431² + h² = 400²

h = 327.659 ft ≈ 328 ft

HOPE THIS HELPS AND HAVE A NICE DAY <3

The air temperature of a town was 22 degrees. It decreased by 12.5 percent. What was the new
temperature?

Answers

Answer:

19.25 degrees

Step-by-step explanation:

original temperature = 22 degrees

decreased percentage = 12.5 percents

the new temperature = 22 - (22×[12.5÷100])

=22 - (137.5÷50)

=22 - 2.75

=19.25

The circumference of a circle is 24π cm. What is the area, in square centimeters? Express your answer in terms of \piπ.

Answers

Given the value of the circumference of the circle, its area in terms of constant pi is 144πcm².

What is a circle?

A circle is simply a closed 2-dimensional curved shape with no corners or edges.

The area and circumference  of a circle is expressed mathematically as;

A = πr²C = 2πr

Where A is area, C is circumference, r is radius and π is constant pi.

Given the data in the question;

Circumference of the circle C = 24π cmArea A = ?

First, we determine the radius of the circle.

24π cm = 2πr

r = 24π cm / 2π

r = 12cm

Now, we find the area.

A = πr²

A = π × (12cm)²

A = π × 144cm²

A = 144πcm²

Therefore, given the value of the circumference of the circle, its area in terms of constant pi is 144πcm².

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What is the area of ΔABC to the nearest tenth of a square inch?

PLEASE SHOW WORK!

Answers

Answer:

1440.1 in^2

Step-by-step explanation:

I drew a picture with work; hopefully this is the equation you're using in the lesson.

helpppppppppppppppphhhh

Answers

Answer:

put a point on the 9 (the line on the left of 10) and on the -6 (the line to the left of -5).

a. 9 is located to the right of -6

b. use the symbol >

Step-by-step explanation:

For the region bounded by y=3x, the x-axis, and x=4, determine the volume when

Answers

The area bounded by the line y=3x from limits x=0 to x=4 will be 24.

What is integration?

Integration is defined as the adding up all the small units to find the whole unit.

It is given in the question that the line y=3x is making a region in a plane from the limits x= to x=4.

So by integrating the function we will get the area.

[tex]\int\limits^4_0 y=\int\limits^4_0 {3x} \, dx[/tex]

[tex]\int\limits^4_0 y=3 \int\limits^4_0 {x} \, dx[/tex]

[tex]\int\limits^4_0 y=[\dfrac{3x^2}{2}]^4_0[/tex]

[tex]\int\limits^4_0 y= \dfrac{(3\times (4)^2)}{2}[/tex]

[tex]\int\limits^4_0 y= 24[/tex]

hence the region bounded by the line y=3x will have the area of 24 square units.

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Explore rectangular and triangular prisms and their two-

Answers

Answer:24

Step-by-step explanation:

Robert is baking a cake. The recipe calls for 3 1/2 pounds of flour for every 1/4 cup of sugar. How many pounds of flour should Robert use for 2 cups of sugar??​

Answers

He would need 7 Lbs of Flour

5
Die
1 point
Which two expressions are equivalent?
15 : (4 + 1) and 15 : 4+1
5 - (x + 7) and 5 – (7 + x)
х
-
(12 – 8) – 4 and 12 – (8 – 4)
2: (3 - 11) and (3 – 11) - 2

Answers

Answer: if you answers my question ill answer this

Step-by-step explanation:

pleade

Answer:

Option B is correct

Step-by-step explanation:

Both expressions are the same, but the x and the 7 in the parentheses are flipped. Since they are in closed parentheses, this does not affect the outcome of the expression at all.

An irregularly shaped rock was lowered into a graduated cylinder holding a volume of water equal to 50 ml. The height of the water rose to 75 ml. If the mass of the stone was 250 g, what was its density?

Answers

5 grams per cubic centimeter

Leonardo uses 2/3 of a bottle of green paint to paint each picture of a forest. He plans to paint 5 pictures of forests. How many bottles of green paint will Leonardo use?

Answers

Answer:

4 bottles of green paint.

Step-by-step explanation:

2/3 x 5/1 = 10/3 = 3 1/3

What is the GCF of 48 24?

Answers

Answer:

24

Step-by-step explanation:

There are 8 common factors of 24 and 48, that are 1, 2, 3, 4, 6, 8, 12, and 24. Therefore, the greatest common factor of 24 and 48 is 24.

The answer for ur question is 24


if you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make?

Answers

If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8. Then the number of the different ways to make ice cream will be 96.

What are permutation and combination?

A permutation is an act of putting things or elements in the right sequence. Combinations are a method of picking things or pieces from a collection of objects or sets when the sequence of the objects is irrelevant.

If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8.

Then the number of the different ways to make ice-cream sundaes will be

Let x be the number of the ways.

[tex]\rm x = \ ^{12}C_1 \times ^8C_1\\\\x = 12 \times 8\\\\x = 96[/tex]

Then the number of the different ways to make ice cream will be 96.

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A roll of tape has a circumference of 19 centimeters. The circumference decreases 4 centimeters after you use some of the tape. What is the diameter of the roll after you use the tape?
QUICK PLS

Answers

Answer:

4.77 cm correct to the nearest hundredth.

Step-by-step explanation:

The new circumference = 19 - 4 = 15 cm.

Circumference C = π * diameter

So the diameter =  C/π = 15/π = 4.7746 cm

Find the measures of the missing angles. The triangle is not drawn to scale.
108
A=
B= 31
PLEASEE HELP

Answers

Answer:

41 degrees

Step-by-step explanation:

Angles in a triangle add to 180 degrees, so angle A is 180-108-31=41 degrees.

uhhh what is this this looks very hard

Answers

Answer:

B. x ≤ 5

Step-by-step explanation:

This is an inequality problem. It can be solved by examining the arrow and the point it closes on. If the arrow is going left, then all values of x are going to be less than the point it closes on. If the arrow is going right, then all values of x are going to be greater than the point it closes on.
If the circle on the point the arrow is closed/shaded in, then that value will be included in the values of x, giving the inequality either a ≤ or ≥ sign depending on which way the arrow is pointing. If the circle on the point the arrow is open, then that value will not be included in the values of x. The sign will be either < or >.

---------------------------------------------------------------------------

For this problem, the arrow is going to the left of 5, which means all values of x are going to be less than 5. Because the circle is closed, that means that number 5 is included, or x can be equal to 5. If the circle was open, it wouldn't be included. So, the inequality is x ≤ 5.

hope this helps!

QUESTION 10
Which term best describes the expression 3x + 5?
O Quartic
O Quadratic
O Linear
O Cubic

Answers

the answer is quadratic
explanation

Find the outer perimeter of this figure.
Round your answer to the nearest
hundredth. Use 3.14 to approximate pi.

Answers

Answer:

62.84 m

Step-by-step explanation:

6*3.14 = 18.84

12*2 = 24

10*2 = 20

total: 62.84

The solution is 62.84 m

The perimeter of the figure is P = 62.84 m

What is a Circle?

A circle is a closed two-dimensional figure in which the set of all the points in the plane is equidistant from a given point called “center”. Every line that passes through the circle forms the line of reflection symmetry. Also, the circle has rotational symmetry around the center for every angle

The perimeter of circle = 2πr

The area of the circle = πr²

where r is the radius of the circle

The standard form of a circle is

( x - h )² + ( y - k )² = r²,

where r is the radius of the circle and (h,k) is the center of the circle

Given data ,

Let the perimeter of the figure be represented as P

Now , the figure has a semi circle , a square and a triangle

The side of the square = 12m

So , the number of sides of square in the perimeter of the figure = 2 sides

So , perimeter of 2 sides = 2 x 12 = 24 m

Now , the 2 sides of the hypotenuse of the right triangle is also part of the figure , so

perimeter of 2 sides of the triangle = 2 x 10 = 20 m

Now , the total perimeter of figure = perimeter of the semi circle + 24 + 20

Perimeter of semi circle = 2πr / 2

The radius of the circle = 6 m

Substituting the value of r in the equation , we get

Perimeter of the semi circle = ( 2 x 3.14 x 6 ) / 2

Perimeter of the semi circle = 18.84 m

So , the perimeter of the figure P = 18.84 m + 24 m + 20 m

The perimeter of the figure P = 62.84 m

Therefore , the value of P is 62.84 m

Hence , The perimeter of the figure is P = 62.84 m

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HELPPPP ASAP I HAVE ONLY 5 MINUTES LEFT TO ANSWER OR ILL GET A 0 ILL GIVE BRAINLY!!(05.04 MC)
An image of a rectangular prism is shown below:
Part A: A cross section of the prism is cut with a plane parallel to the base. What is the name of the shape created by the cross section? Explain your answe
(5 points)
Part B: If a cross section of the prism is cut diagonal to the base, what would be the shape of the resulting cross section? (5 points)

Answers

Answer:

Rectangular prism

Triangular prism

part 2

When the rectangular prism is cut across the opposite diagonals, then the shape formed would be a triangular prism shape

Step-by-step explanation:

Item 7 Lakima has a spinner divided into 5 equal sections that are labeled 1 though 5. She wants to compare the theoretical probability and the experimental probability of spinning an odd number. She spins the spinner 6 times and records the results in this list. {2,4,1,5,3,4} Drag and drop the answers into the boxes to correctly complete the sentences. The theoretical probability of spinning an odd number is equal to Response area. The experimental probability of spinning an odd number is equal to Response area. Therefore, the theoretical probability of spinning an odd number is Response area the experimental probability of spinning an odd number.

Answers

The theoretical probability of spinning an odd number is equal to 3/5. The experimental probability of spinning an odd number is equal to 1/2.

What is Probability?

Probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

Given the spinner has 5 sections, each section is numbered between 1 to 5. Lakima also spins the spinner 6 times and records the results in this list. {2,4,1,5,3,4}. Therefore,

The theoretical probability of spinning an odd number is equal to 3/5.

The experimental probability of spinning an odd number is equal to 3/6=1/2.

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Answer: The theoretical probability of spinning an odd number is equal to 3/5. The experimental probability of spinning an odd number is equal to 1/2. Therefore, the theoretical probability of spinning an odd number is GREATER THAN  the experimental probability of spinning an odd number.

Step-by-step explanation:

help pls brain dead rn

Answers

Answer:

she spends 50 hours with her baby and 30 hours on math

Step-by-step explanation:

80/2 = 40

Since baby needs to be 10 more you do 40+10 = 50

and 80 - 50 = 30

Hence the answer

at least i think

Using the data set below, what is the range?
4,6,6,7,7,8,8,8,9A
5

B
2

C
4

Answers

the answer is 5 because when you find range, you always do the biggest number subtracting the smallest number. therefor your answer is 5

Answer:

A

Step-by-step explanation:

Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is

9 - 4 = 5

Half dollar coins weigh 4 ounces and quarters weigh
0.2 pound, Laurel has 9 half dollar coins and 25 quarters in
her coin bank. Her coin bank weighs 2 pounds. Laurel lifts the
coin bank. How much does the bank and the coins weigh?

(A) 43 ounces

(C) 118 ounces

(B) 88 ounces

(D) 148 ounces

Answers

Answer:

A roll of quarters from the bank is worth $10 and weighs almost exactly half a pound, so 200 pounds works out to $4000.

Which kind of triangle is shown? Help me

Answers

Answer: Right triangle

Step-by-step explanation: There is a 90 degree angle diagonal from the hypotenuse

Answer:

right triangle

Step-by-step explanation:

if you double the triangle, it becomes a rectangle

Several students made comments about this image.

A triangle has angles B, C, D. The exterior angle to angle B is A.

Which comment is true?
“If I know the measures of A and B, I can subtract those measures from 180 to find the measures of the other two angles.”
“If I know the measure of C, I can find the measure of angle A because they are the same.”
“If I know the measures of angles C and B, I can find the measures of A and D.”
“If I know the measure of angle A, I can find the measure of angle D by subtracting from 180

Answers

Answer:

The third comment is the true one: "If I know the measures of angles C and B, I can find the measures of A and D."

This is because you can use the angle B to find angle A by subtracting it from 180, and you can find angle D by adding together C and B and subtracting that from 180.

I hope this helps!

Step-by-step explanation:

g(1) = 0
=
lgn= ) +m
g(n) = g(n - 1) +n
=
-
n
g(2) =

Answers

Answer:

g(1) = 0

=

lgn= ) +m

g(n) = g(n - 1) +n

=

-

n

g(2) =12

Step-by-step explanation:

12345678910

Answer with an algebraic equation!!!
Scott is 7 years older than his brother Mark. Their combined ages are 35. How old is each boy?

Answers

Answer:

Scott is 21 his brother is 14

Step-by-step explanation:

you know that scott is 7 years older than his unknown variable brother, so use what is given and form an alegbraic expression 2x+7=35

Some residuals for a scatterplot are given. for x = 3, the residual is –5. for x = 5, the residual is –1. for x = 7, the residual is 3. for x = 9, the residual is 0. for which value of x is the data point farthest from the line of best fit? 3 5 7 9

Answers

The value of x that is the data point farthest from the line of best fit is 3

How to determine the x value farthest from the line of best fit?

The given parameters are:-

x      Residual

3         -5

5         -1

7          3

9          0

Take the absolute value of the residuals

x      Residual

3         5

5         1

7         3

9         0

The largest absolute value is 5

Hence, the value of x that is the data point farthest from the line of best fit is 3

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Answer:

answer is 3

Step-by-step explanation:

I NEED HELP FAST GET BRAINLIEST AND 100 POINTS:
Galvin and Henry spend a certain amount of money from their money box each month to buy plants. The table (function 1) shows the relationship between the amount of money (y) remaining in Galvin’s money box and the number of months (x): Number of Months (x) Amount Remaining (in $) (y) 1 80 2 75 3 70 4 65 The equation (function 2) shows the relationship between the amount of money, y, remaining in Henry’s money box and the number of months, x: Function 2 y = −7x + 80 Which statement explains which function shows a greater rate of change? Function 2 shows a greater rate of change, because Henry spends $7 each month and Galvin spends $5 each month. Function 2 shows a greater rate of change, because Henry spends $80 each month and Galvin spends $15 each month. Function 1 shows a greater rate of change, because Galvin spends $15 each month and Henry spends $73 each month. Function 1 shows a greater rate of change, because Galvin spends $5 each month and Henry spends −$7 each month.

Answers

Answer:

Function 2 shows a greater rate of change, because Edwin spends $9 each month and Adam spends $7 each month.

I found this out because for Adam, you simply subtract the y-coordinates from each other and get 7 each time. Edwin clearly shows that he Spends $9 each month with the negative sign.

Step-by-step explanation:

Answer:

Function 2 shows a greater rate of change, because Henry spends $7 per month and Galvin spends $5 per month.

Step-by-step explanation:

Function 1

Money remaining in Galvin's money box:

[tex]\begin{tabular}{| c | c |}\cline{1-2} Number of Months (x) & Amount Remaining (in \$) (y)\\\cline{1-2} 1 & 80\\\cline{1-2} 2 & 75 \\\cline{1-2} 3 & 70 \\\cline{1-2} 4 & 65 \\\cline{1-2}\end{tabular}[/tex]

We can calculate the rate of change by using this formula:

[tex]\textsf{rate of change}=\dfrac{\textsf{change in y}}{\textsf{change in x}}[/tex]

[tex]\implies \textsf{rate of change}=\dfrac{75-80}{2-1}=\dfrac{-5}{1}=-5[/tex]

Therefore, The rate of change of function 1 is -5 which means that Galvin spends $5 per month.

Function 2

Money remaining in Henry's money box:  

[tex]\sf y = -7x+80[/tex]

This is represented as a linear equation: y = mx + b
(where m is the slope or "rate of change" and b is the y-intercept of "initial value)

Therefore, the rate of change of function 2 is -7 which means that Henry spends $7 per month.

Conclusion

Function 2 shows a greater rate of change, because Henry spends $7 per month and Galvin spends $5 per month.

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