The two 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 above the third mark, 1 dot above the fourth mark, 3 dots above the fifth mark and 1 dot above the sixth 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 0.8. 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.)

1.5
2.2
3.0
4.6

Answers

Answer 1

Answer:

The number of times the  variability in the heights of the seventh graders is the variability in the heights of the sixth graders is:

                         3.0

In order to find the variability between the two sets we divide the mean absolute deviation of the first set of data by the mean absolute deviation of the second set of the data.

The MAD of first set of data is: 1.2

and MAD of second set of data is: 0.4

Hence, let n be the number of times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders.

Step-by-step explanation: i Just said it 3.0 Hope this help ..lolz <3

Answer 2
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Related Questions

764/9
long divison pls show work

Answers

Answer: 84.8 I’m sorry if this does’nt help

Step-by-step explanation:

here ya go i just kinda just used a calculator on the internet

Mimi uses a 7.5-gal bucket to fill a wading pool. She pours 12 buckets full of water into the pool, which can hold up to 138 gal of water. She wants to solve for n, the number of additional full buckets of water she can pour into the pool.

Answers

Answer: 6 full buckets.

Step-by-step explanation:

138(pool)/7.5(a bucket)=18.4

18-12=6 full buckets.

What is the mean absolute deviation of this data set, rounded to the nearest tenth?



0.4
0.9
1.1
2.8

Answers

Answer:

0.4 = 0.4

0.9 = 1.0

1.1 = 1.1

2.8 = 3.0

Step-by-step explanation:

i'm so sorry if this is wrong i just wanted to try and help

The mean absolute deviation of this data set is 1.25 which is nearest to the 1.1 option third is correct.

What is mean absolute deviation?

It is defined as the measure to show the variation in data set in other words between the mean and every data value, the distance known as the MAD.

We have data as shown in the picture in the form of frequency graph.

The mean = 11/4 = 2.75

The difference between each value and mean is shown in the attached table.

MAD = 5/4 = 1.25

The nearest value is 1.1.

Thus, the mean absolute deviation of this data set is 1.25 which is nearest to the 1.1 option third is correct.

Learn more about the mean absolute deviation here:

brainly.com/question/10528201

#SPJ1

plz help i gotta turn dis in now (no links)

Answers

Answer:

1.368 × 10^4

Step-by-step explanation:

i blink 38 times a muinet so i blink 2280 an hour so i blink 13680 every 16 hours

dinElla’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean test score of 90?

needed on the next test

Answers

Just calculate it hahahaha

Answer:

93

Step-by-step explanation:

URGENT!!! plz help will give brainlist question is in photo

Answers

Answer:

x = 3

Explanation:

15x + 5 + 22x + 4 + 60 = 180

37x + 69 = 180

37x = 111

x = 3

a skydiver jumps out from the plane at 10,000 feet above the ground. the skydiver decends at a rate of 175 feet per seconds. how high in the air is the skydiver when he opens his parachute after 25 seconds?

Answers

Answer:

5625 feet

I hope it's helps you

Answer:

5625 feets

Step-by-step explanation:

Rate(feet/seconds) = height(feets)/time(seconds)

175 = x/25

x = 4375

After the skydiver opens his parachute the height reduces

Initial height – reduced height

10000 – 4375

= 5625 feets

Austin is helping his mom stain their wooden deck shown in the diagram below.

The diagram is shown.


Part A. How many square feet of the deck do Austin and his mom need to stain?

Part B. If a can of stain covers 200 square feet, how many cans of stain will they need to buy to cover the entire deck?

Enter the correct answers in the boxes.

Answers

Answer:

part A is 512 square ft and part B is 3 cans

Amy volunteers at an animal shelter. She worked 10 hours in March, 14 hours in April, 18 hours in May, and 22 hours in June.

If the pattern continues, how many hours will she work in December?

Answers

Answer:

46 hours

Step-by-step explanation:

the pattern is for the hours to increase by 4.

so,july=26

august=30

september=34

october=38

november=42

december=46

hope this helps

plz can i get brainliest:)

She works 46 hourssss

Helppp ill mark brainliest
look at the picture

Answers

Answer:

She will have to earn $3,100

Step-by-step explanation:

6,600-3,500=3,100

3,100

You add up what she is getting and than subtract how much she needs with what she has so far. And that’s the answer. So 2000+ 1500= 3500 than 6,600-3500

The growth of a group of bacteria is modeled by the function f(x) =10x. Identify the key features of the model.

The domain is ___________.
The range is ____________.
The asymptote is _________.
The y-intercept is _________.

Answers

The Y INTERCEPT is x the range is 10

Note: A maximum number of 4 points are available for this question. Part A is worth 1 point. Part B is worth 1 point. Part C is worth 2 points.
Brian received 45 trading cards from his mother and 25 trading cards from his uncle to start a collection.
Each week, Brian uses his allowance to buy a new pack of 15 trading cards to add to his collection.

Write an equation in slope-intercept form to represent the situation. Use x for the independent variable and y for the dependent variable. Identify what both variables represent.

Answers

Answer:

The representation of Brian's situation in slope intercept form is:

                              y= 15x +70

Step-by-step explanation:

Let x be the number of weeks Brian started his collection.

y be the number of cards Brian has at present.

                         y= 45+25+ 15 x

                   or, y= 15 x +70

which is in the form of,

                              y= mx +c                (slope intercept form)

where,

m= slope

x= x- intercept

c= constant.

Please help. Thank you so much

Answers

Answer:

Average decrease in value per year: $70

Step-by-step explanation:

600 ---> 250

600 - 250 = 350

350 / 5 = 70

solve 2x+x-3 will mark brainliest

Answers

Answer:

3x−3

Step-by-step explanation:

2x+x−3

=2x+x+−3

Combine Like Terms:

=2x+x+−3

=(2x+x)+(−3)

=3x+−3

3x-3 hope this helps

a dog runs across a 500 sq foot house, how many miles did he run?

Answers

Answer:

500 SQ Foot House Is The Answer.

Step-by-step explanation:

1.794 × 10-5 square mile

can you help me plsssssss

Answers

Answer:

60.16

Step-by-step explanation:

Don't really know how to explain this other than use a calculator.

Hope that this helps!

A restaurant manager needs to rope off a rectangular section for a private party. The length of the section must be 7.8m. The manager can use no more than 27m of rope. Which inequality could you use to find the possible widths of the roped off​ section?

Answers

Answer:

Step-by-step explanation:

What is the volume of the pyramid to the nearest whole unit?

A pyramid with a rectangular base is shown. The base has sides of length 6 yards and 11 yards. From an 11 yard side, a dashed line is drawn to the center of the rectangle. From this point, a vertical dashed line extends upward to the vertex at a height of 6 yards above. A small square is located at the intersection of the dashed lines.
A. 99 yd3
B. 132 yd3
C. 198 yd3
D. 396 yd3

Answers

The answer is D it’s not that hard just add all the numbers

Answer:

D.) 396 yd3

Step-by-step explanation:

helpppppppp pleaseeeeee :)))))

Answers

18.4 because $16 per hour x 1.15= $18.4
$18.40 per hour. She made $16 before and with a 15% increase, it will add $2.40

I NEED HELP FAST PLEASE! Find the surface area of the following composite figure.

Answers

the answer is 228 I was wrong when I said

I think the choices is wrong

Answer:

B. 228 meters square

Step-by-step explanation:

6 x 4 = 24

24 x 4 = 96

6 x 6 = 36

(8 x 6) / 2 = 24

24 x 4 = 96

96 + 96 + 36 = 228 square meters

A community swimming pool has a deep end and a shallow end. The volume of water in the deep end can be represented by (2x2+12x+10) ft3 and the volume of the water in the shallow end can be represented by (4x2−100)ft3.

Write the equivalent expression ("simplified") that represents the total volume of the water in the pool in ft3.

Answers

Answer:

The total volume of water in the pool  = ( 6x^3 + 12x^2 - 90x ) ft^3

Step-by-step explanation:

The volume of water in the deep end = (2x^3 + 12x2 + 10x) ft^3

The volume of water in the shallow     =  (4x^3 -100x) ft^3

The total volume of water in the pool  = (2x^3 + 12x2 + 10x)  +  4x^3 -100x)

                                                              = ( 6x^3 + 12x^2 - 90x ) ft^3

What is the solution
Please help

Answers

Answer:

Step-by-step explanation:

1.)

3x=3

x=1

2+y=0

y=-2

solution: (1,-2)

2.)

6y = -36

y = -6

-4x+12 = -12

-4x=-24

x = 6

solution: (6,-6)

Answer:

Top: x=1, y= -2

Bottom: x= 6, y= -6

Step-by-step explanation:

Top:

Isolate x for y: 2(3+y) + y = 0  

Simplify: 6+3y=0

Isolate y for 6+3y=0: y = -2

For x= 3 + y: x = 1

Bottom:

Isolate x for : -4x - 2y= -12:     x= [tex]\frac{-6 + y}{2}[/tex]

Simplify: 6y+ 12 = -24

Isolate y for 6y+ 12 = -24: y = -6

For x= [tex]-\frac{-6 -6 }{2} = 6[/tex] : x = 6

What is the interquartile range of the box-and-whisker plot shown?
43
54
45
34

Answers

Answer:

The IQR of the given data is 6 There for the correct option is b

Step-by-step explanation:

whyd my answer get taken down

Can someone help me please

Answers

Ithe diameter would be about 5
D=2 r=2x5=10
Diameter = 10

PLZ PLZ PLZ HELPPPPPPPP

Answers

The answer is 1/10/81

Answer:

1 10/18

Step-by-step explanation:

Fill in the blanks
[tex]1. (-2) x (-4.5)
2. (-8.7) x (-10)
3. (-7) x ? = 14
4. ? x (-10) = 90[/tex]

Answers

1 - 9
2 - 87
3 - -2
4 - -9
that’s the answers for them :), have a great day !! :)

2 plus 3 plus 8 plus 2

Answers

Answer:

15

Step-by-step explanation:

2+3+8+2

2+3=  8+2=

 5  +  10=

     15

     

Answer: 15

Step-by-step explanation:

Added all 4 #s.

BRAINLY IF YOU DO IT RIGHT AND WITH EXPLANATION
In Carl Sandburg's poem "Fog," how do readers know that fog is being compared to a cat?


It is directly called a cat.


It is shaped like a cat.


It sounds like a cat.


It moves like a cat.

Answers

Answer:

It moves like a cat.

Step-by-step explaination:

The fog is compared to the way a cat moves

Answer:

it moves like a cat.

Step-by-step explanation:

Carl Sandburg describes the fog as arriving "on cat feet," sitting silently, and then slipping quietly away. Therefore moves like a cat.

BRAINLIEST IF CORRECT!!
which quadrilateral makes this statement true?
QUADRILATERAL: ABCD ≃

screenshots inserted !!

Answers

its B. . ..... .............

Answer is B just look for the same measurements.

Can someone please help me with this question the instructions are to use a calculator to find the perimeter (the solid lines and curves) of each figure. The perimeter of each semicircle can be found by using the equation 1/2 pi d (the place where I put the words pi has the pi symbol, and d is just a variable. Also use 3.14 as pi, and the top part is cut off a little bit, but it still counts as a full semi circle. Please help me.

Answers

You first calculate the Circumference of the semi circle using pi*r1/2
18.84
Then add the numbers
9+14+15+18.84
56.84 yd

Answer:

IM not sure sorry

Step-by-step explanation:

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