The dot plot shows the number of classes per semester that a group of boys and girls have chosen to take in their freshman year of college. Which statements correctly describe the two data sets?



The difference of the means is 1.5.
The difference of the means is 0.5.
The difference of the means is about one-third the mean absolute deviation of either data set.
The difference of the means is 1.
The difference of the means is about one-half the mean absolute deviation of either data set.

Answers

Answer 1

The correct statement is the difference of the means is 0.5.

What is Box- plot?

A box and whisker plot, often known as a box plot, shows a data set's five-number summary. The minimum, first quartile, median, third quartile, and maximum make up the five-number summary. A box is drawn from the first quartile to the third quartile in a box plot. At the median, a vertical line passes through the box.

Given:

As, from the box plot mean of boys is

= (1 x3 + 2x 7 + 3 x 6+ 4 x 2 + 5 + 6) /20

= 2.7

and, mean absolute deviation of boys

= (1.7 x 3 + 0.7 x 7 + 0.3 x 6 + 1.3 x 2 + 2.3 + 3.3)/ 20

= 1

now, from the box plot mean of girls is

= (1 x 2 + 2 x 4 + 3 x 7+ 4 x 4 + 1 x 5 + 6 x 2) /20

= 3.2

and, mean absolute deviation of girls

= (2.2 x 2+ 1.2 x 4 + 0.2 x 7+ 0.8 x 4 + 1.8 x 1+ 2.8x 2)/ 20

= 1.06

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Related Questions

It also detects if you are right or wrong

Answers

Answer:

50

Step-by-step explanation:

all your doing is dividing 100 by 20 and u get 50

Answer: 15. A. Proportional 16. B. 50 mph

Step-by-step explanation: The price and the number of apples are proportional based on the info you have given us. And B. 50 is correct because 100 miles in 2 hours is 100/2 which equals 50/1 so the unit rate would be B. 50 mph.

Please help due NOW PLEASE HELP

Answers

Answer:

Constant

Step-by-step explanation:

(1,32)

(2,64)

(3,96)

They increase by 32 each time

solve by substitution: y=3x+14 y=-4x​

Answers

Answer:

X=-2 and y=8. (-2,8)

Step-by-step explanation:

Let's solve your system by substitution.

y

=

3

x

+

14

;

y

=

4

x

Step: Solve

y

=

3

x

+

14

for y:

y

=

3

x

+

14

Step: Substitute

3

x

+

14

for

y

in

y

=

4

x

:

y

=

4

x

3

x

+

14

=

4

x

3

x

+

14

+

4

x

=

4

x

+

4

x

(Add 4x to both sides)

7

x

+

14

=

0

7

x

+

14

+

14

=

0

+

14

(Add -14 to both sides)

7

x

=

14

7

x

7

=

14

7

(Divide both sides by 7)

x

=

2

Step: Substitute

2

for

x

in

y

=

3

x

+

14

:

y

=

3

x

+

14

y

=

(

3

)

(

2

)

+

14

y

=

8

(Simplify both sides of the equation)

Answer:

x

=

2

and

y

=

8

If the given equations are y=3x+14 and y= -4x​. The value of x and y for the equation will be -2 and 8 respectively.

What is an equation?

Equations are statements that affirm the equivalence of two expressions that are joined by the equals symbol "=". An equal sign ("=") links two expressions together to form an equation. The two expressions on each side of the equals sign are referred to as the "left-hand side" and "right-hand side" of the equation.

It is given that the equations are,

y=3x+14 ----------(1)

y= -4x​  -------------(2)

In order to solve "by substitution," you must first solve one of the equations for one of the variables (you choose which one), plug that solution back into the other equation, "substituting" for the selected variable and then solve for the other.

Substitute the value of y from equation 2 in equation 1 as

y=3x+14

-4x=3x+14

Rearrange the equation in order to find the value of x as

-4x-3x=14

-7x=14

x= -14/7

x= -2

Put the value of x in equation 2 as

y= -4x

y= -4(-2)

y=8

Thus, if the given equations are y=3x+14 and y= -4x​. The value of x and y for the equation will be -2 and 8 respectively.

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huh?

6(2 + 4) - 1
_________
2 x 3 + 1​

Answers

Answer:

equaul

Step-by-step explanation:

|-4|=|4| true or false

Answers

Answer:

true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

the lines around the number represent the “absolute value” and so they will both be positive four, because “absolute values” are always positive.

Suppose that, in 2006, Canada produced 0.531 million computers. The total world production that year totaled 147 million computers. What percent of the world's total production of computers is contributed by Canada? Round your answer to the nearest tenth of a percent.

Answers

Answer:

25.6%

Please make me the brainlist

Which set of numbers does NOT describe the side
lengths of a right triangle?
a. 3, 4, 5
b. 5, 12, 13
c. 6, 14, 17
d. 7, 24, 25
4

Answers

Answer:

The answer is C

Step-by-step explanation:

You have to do the Pythagorean Theorem.

A. you get 25=25

B. you get 169=169

C. you get 232=289

D. you get 625=625

The length of a nail is 1 3/4 inches. What is the length in
inches of 8 nails?

Answers

Answer:

14 nails

Step-by-step explanation:

I will pick the brainiest answer! Thanks! :)

Answers

Part A:

A). Equilateral Isosceles

B). Right isosceles

C). Obtuse scalene

Part B:

F and E

Plz mark me brainliest

Answer:

For the first triangle, (a) :

-Equilateral

- Isosceles

For the second triangle, (b) :

-Right

-Isosceles

For the third triangle (c) :

- Scalene

- Obtuse

Step-by-step explanation:

Wait So Do You Multiply Fractions Like Lets Say The Problem Was 2 x 9
8 1 Right So Do I Multiply 9x1 Then 1x2 Then 8x9 Then 8x2?
I Learned How To Do Them A While Ago But Forgot.

Answers

Answer:

can you take a photo of the question you're asking for? I can answer it, but your question was kinda worded funny so I don't rest understand what you mean. I'm good at fractions, so I will be happy to help:)

can someone help my sister with her module? she in 6th,and i am way to dumb to know how to help her (i gib link)

Answers

Answer:

Sure!

Step-by-step explanation:

please help

This is a true or false question i’m just not smart

Answers

it’s true i’m pretty sure

Answer:

its true

Step-by-step explanation:

can i get brainliest

Need help!! How do I figure out the question.

Answers

Answer:

its the second one lol its just asking you to pick the one less than a and a is 0.11 so it would be 0.0019

Step-by-step explanation:

slope of the points (11,-20) and (3,-20)

Answers

Answer:

the slope is 0.

Answer:

Slope is zero

What is the value for angle 2?

I need help

Answers

Answer:

120

Step-by-step explanation:

all complementary angles should add up to 180 degrees

Answer:

the value of 2 is 60

Step-by-step explanation:

Yesterday, the temperature in a city dropped from 9°C to –9°C, as shown below.



The expression 9 + (–18) represents the final temperature. Which of the following is an equivalent way to describe this temperature?

|–18| degrees in a negative direction from 9 degrees

|–18| degrees in a positive direction from 9 degrees

|–9| degrees in a negative direction from 9 degrees

|–9| degrees in a positive direction from 9 degrees

Answers

Answer:

I belive the correct answer might be (A)

Write an equation of the line passing through the point (4, -2) that is parallel to the line - 3x – 4y = 5.

Answers

Answer:

Step-by-step explanation:

Let's solve for x.

−3x−4y=5

Step 1: Add 4y to both sides.

−3x−4y+4y=5+4y

−3x=4y+5

Step 2: Divide both sides by -3.

−3x

−3

=

4y+5

−3

x=

−4

3

y+

−5

3

Answer:

x=

−4

3

y+

−5

3

I think the answer would be ———— y + 2 = - 3/4 ( x - 4 ) .

So, the line is parallel to - 3x - 4y = 5 and the line passes through the point (4, -2).

So, what I did was I pulled up a graphing site on my Chromebook called DESMOS, maybe you could use this in the future to help you out a little bit.

I then graphed the line of - 3x - 4y = 5 or you could simplify it to y = -3/4x + 5/4 .

The slope of the line is 3/4 . You can find this by taking the points (-15, 10) and (5, -5) and doing this...

m = y2 - y1 divided by x2 - x1 which would look like -5 - 10 divided by 5 - -15 which would simplify to -15 over 20 which would get you a slope of -3/4.

Then you take the formula y - y1 = m( x - x1) and substitute in your variables.

It should look something like this y + 2 = - 3/4 ( x - 4) .

This answer is parallel to -3x - 4y = 5.

I’m sorry, I’m not very good at explaining, but I hope this helps you out.

I WILL MARK AS BRAINLIEST PLS PLS PLS HELP

Answers

Answer:

1) is height(age)

2) should be shipping(distance)

3) g(8) = 28

4) f(3) = 18

Step-by-step explanation:

plug in 8 as x. 5(8)- 12 --> 40 -12 = 28.

plug in 3 as x. 2x² --> 2(3)^2--> 2(9) = 18.

HELP ME PLZ <<<<<<<<<<<<<<<<<<<<

Answers

Answer:

Yes, Alternate Exterior Angles

Step-by-step explanation:

A testicle cuff is a ring-shaped device around the scrotum between the body and the testicles which when closed does not allow the testicles to slide through it. A common type has two connected cuffs, one around the scrotum and the other around the base of the penis. They are just one of many devices to restrain the male genitalia. A standard padlock, which cannot be removed without its key, may also be locked around the scrotum.

Need help with geometry question

Answers

Answer:

B. 66

Step-by-step explanation:

idk how to explain it without repeating what it says in the answer

Answer:

The answer is:

B) 66 degrees

Step-by-step explanation:

Since the triangle is an isosceles triangle, angle C is the same as angle B.

57 + 57 = 114

Since you know two of the three angles, and you know that a triangle's angles must equal 180 degrees...

180 - 114 = 66

Angle A must equal 66 degrees for the triangle to equal 180 degrees.

I hoped this helped you! If it did, please consider rating and pressing the 'Thanks' button. Have great day!

There are 229 basketball fans who plan to go to a game. How many buses will be needed, given that each bus can hold 49 fans?

Answers

Answer:

5

Step-by-step explanation:

you divide the number of fans(229) by the number of people the buses can hold(49)

229÷49= ~4.6

because theres a decimal, you would have to add on a extra bus. so the answer would be 5

In the space below rewrite the subtraction question 2 - 6 = ? as an addition question​

Answers

Answer:

_+6=2

Step-by-step explanation:

just simple math

Answer:

Either 2+6 or 6+2

Find the Slope between two points: (-1,9) and (2, 3)

Answers

Answer:

Slope = -2

Step-by-step explanation:

x1   y1     x2   y2

(-1 , 9)     (2 , 3)

Slope = y2 - y1

             x2 - x1

3 - 9  = -6  

2 -(-1) =   3

                      = -2

The slope between the two points is -2.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

The  slope is given as,

m = (d - b) / (c - a)

Where (a, b) and (c, d) are the two points.

Now,

(-1, 9) = (a, b) and (2, 3) = (c, d)

m = (3 - 9) / (2 + 1)

m = -6 / 3

m = -2

Thus,

The slope is -2.

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-10 = -b/4. What is the answer, I can't find it.

Answers

Answer:

b is 40

Step-by-step explanation:

Answer:

I think b = 40

Step-by-step explanation:

What is the slope of this line?

Enter your answer as a fraction in simplest term in the box.

Answers

Answer:

1/4

Step-by-step explanation:

y2-y1/x2-x1

6-5/ 0 - -4.... since it's two subtract signs facing each other you turn it into a +..... 1 /4

Answer:

1/4

Step-by-step explanation:

y2-y1/x2-x1

6-5/ 0 - -4.... since it's two subtract signs facing each other you turn it into a +..... 1 /4

Determain the missing value in the table,I’ll give Brainlyest answer,please.

Answers

Answer:

15

Step-by-step explanation:

2 * 3 = 6

5 * 3 = 15

7 * 3 = 21

9 * 3 = 27

A rectangular garden has an area of 35 square miles. If its length is 78 miles, what is its width?
Input your answer as a fraction.

Answers

Answer:

9/20 mi

Step-by-step explanation:

A= b*hFill in the Values

35 = 78 * h

3. divide 35 by 78 = 0.44871794871

4. round that to .45

5. To make a fraction, put it over 100

45/100

7. Simplify fraction

9/20

Estimate:
37 is 60% of what number?
22
B
6
60
2,220

Answers

Answer:

60

Step-by-step explanation:

Select all true statements given the diagram below.

Answers

You need to show the graph, for others to answer

I don’t understand help me plz hard

Answers

Answer:

-2 1/2 is the correct answer

I hope this helps! If it is correct please mark brainliest answer, thank you!

Stay safe, God bless and happy studying!