Mathematics Middle School

The amount that two groups of students spent on snacks in one day is shown in the dot plots below.

Group A
A dot plot titled Group A. A number line going from 0 to 5 labeled Amount in Dollars. There are 0 dots above 0, 5 above 1, 4 above 2, 1 above 3, and 0 above 4 and 5.

Group B
A dot plot titled Group B. A number line going from 0 to 5 labeled Amount in Dollars. There are 0 dots above 0, 3 above 1, 2 above 2, 4 above 3, 0 above 4, and 1 above 5.

Which statements about the measures of center are true? Select three choices.
The mean for Group A is less than the mean for Group B.
The median for Group A is less than the median for Group B.
The mode for Group A is less than the mode for Group B.
The median for Group A is 2.
The median for Group B is 3.

Answers

Answer 1

Answer:

1. The mean for Group A is less than the mean for Group B

2. The median for Group A is less than the median for Group B.

3. The mode for Group A is less than the mode for Group B.

Step-by-step explanation:

1. To find the mean for Group A, you use the formula: Total sum/Total frequency.

To find the total sum, you multiply the frequency(how many times the given number is repeated) with the given numbers.

0 × 0 = 0

1 × 5 = 5

2 × 4 = 8

3 × 1 = 3

4 × 0 = 0

5 × 0 = 0

Total Sum: 5 + 8 + 3 = 16

Total frequency: 5 + 4+ 1 = 10

[tex]\frac{16}{10}[/tex] = 1.6

To find the mean for Group B, you repeat everything above.

0 × 0 = 0

1 × 3 = 3

2 × 2 = 4

3 × 4 = 12

4 × 0 = 0

5 × 1 = 5

Total Sum: 3 + 4 + 12 + 5 = 24

Total frequency: 3 + 2 + 4 + 1 = 10

[tex]\frac{24}{10}[/tex] = 2.4

2. I can't explain it but I'm certain that it is correct.

3. The most repeated number for Group A is 1, it is repeated 5 times, while the most repeated number in Group B is 3, it is repeated 4 times.

Related Questions

Simplify. Write the expression using only positive exponents.

Answers

Answer:

w^6/9

Step-by-step explanation:

w to the power of 6 divided by 6

W^6/9 I think is the expression for this one

Ariana's grandfather made a scaled down model of a knitting needle to be placed inside a dollhouse. Arianna measured the model below. If every 0.5 inch of the scaled down model equates to 3.5 inches of the actual needle, what is the length of the actual needle?
10.5
15
12
9.5

Answers

Answer:

10.5

Step-by-step explanation:

1.5 inches

.5 and 1.5 =3

3x3.5=10.5

They answer is 10.5 I believe

please help, i give brainliest.

Answers

Answer:

128.74

Step-by-step explanation:

.8x = 120.00

.87x = 112.00

This represents an easier way to do the problem if there is 20% off that means you are paying 80% of the original cost. You are paying 87% if it is 13% off.

To find the price at nine-irons divide 112 by .87

20% of 120 is 24

120 - 24 = 96

96 - 8 = 88

13% of 100 is 13

100 - 13 = 87

Sorry I don't understand this one

Please please please help me I’m in honors math so our teacher makes us show our work

Answers

Answer:

You didn't put the question

Step-by-step explanation:

(will edit when the question is fixed)

Answer:

what is the question?

Step-by-step explanation:

HELP ME I was out of school when we learned this from a concussion and broken arm

Answers

Answer:

2 flavors and 4 toppings

Step-by-step explanation:

For there to be 8 possible ways, you need to have inputs that can equal that. 4×2 is 8

help it is due today and not links or files of downloads of anything like that just type in your answer plz and thank u :)

Answers

Answer:

b=$65

Step-by-step explanation:

From question:

Four friends went out to dinner

Decided to equally split the bill

Each paid 16.25

(a)Total amount = b

Average amount paid by 4 friends =16.25

b = Average amount*total number of friends

= 16.25 * 4

(b) b= 4*16.25

=65

The answer to this question is B=65

Q2) r=4cm, h=4cm. Find the volume of the right cylinder

Answers

Answer:

Formula of a Right Cylinder:

V=r ²h

V=(4)²(4)

V=(16)(4)

V=64

the answer to your question would be A) 64

Explanation:

I don't know for sure tho ... nah I'm jus playin , I'm valid

Help no links please

Answers

Answer:

180

Step-by-step explanation:

The difference between 68 and 23 is 45. The company charging 23$ has to be 45$ more for the amount of hours. When you multiply 180 by .4 you get 72, and when you multiply 180 by .65 you get 117. The difference is 45.

Sorry that I didn't show my work, I don't really know how to do this other than plugging in random numbers and 180 fits so...

Hope this helps!

Use order of operations to evaluate the expression.
12 x (3 + 4) ÷ 2 - 10

Answers

Answer:

32

Step-by-step explanation:

Here's the order of what to solve:

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

12 x (3 + 4) ÷ 2 - 10

12 x 7 ÷ 2 - 10

12 x 7 ÷ 2 - 10

84 ÷ 2 - 10

84 ÷ 2 - 10

42 - 10

42 - 10

= 32

Answer:

Step-by-step explanation:

Add: 3 + 4 = 7

Multiple: 12 * the result of step No. 1 = 12 * 7 = 84

Divide: the result of step No. 2 : 2 = 84 : 2 = 42

Subtract: the result of step No. 3 - 10 = 42 - 10 = 32

Help me answer these 2 questions!!!!!

Answers

The first one in x _> 12

The second one is x<24

Good luck!

Answer:

B & B.

Step-by-step explanation:

1.

[tex] \frac{x}{8} \geqslant - 1.5[/tex]

[tex] \frac{x}{8} \times 8 \geqslant - 1.5 \times 8[/tex]

[tex]x \geqslant - 12[/tex]

2.

[tex]16 > - 8 + x[/tex]

[tex]16 + 8 > x - 8 + 8[/tex]

[tex]x < 24[/tex]

Solve the x ['-']


48>−6x

Answers

Answer:

x = -9, -10, -12...

essentially anything less than negative 8

Step-by-step explanation:

48>-6x

-8>x

The answer to your question is -8>x

Two larger cubes are made out of unit cubes. Cube A is 2 by 2 by 2. Cube B is 4 by 4 by 4. The side length of Cube B is twice that of Cube A.

Is the surface area of Cube B also twice that of Cube A? Explain or show your reasoning.
Is the volume of Cube B also twice that of Cube A? Explain or show your reasoning.

Answers

Answer:

The answer is number B hope this help

Step-by-step explanation:

The table shows home runs for 2 baseball players over 5 games. Which statement is true?

Answers

Answer:

henry statement is true

Step-by-step explanation:

Henry is correct and I did this assignment

A little help please

Answers

it’s D i did that assignment yesterday
The answer to that question is D!

PLEASE HELP I HAVE A 31 IN MATH THIS IS A REALLY IMPORTANT TEST

Answers

Answer:

Question 1.

1 can of soup 5 can of water 3 can of soup 15 can of water 2 can of soup 10 can of water 2.5 cans of soup to 12.5 cans of water 4 cans of soup 20 cans of water

Question 2.

a. W=sx5

b. S=w/5

c. 25 cans of water

d. He can add 7 cans of soup

Step-by-step explanation:

^^

explanation..........

A jar contained 18 red marbles, 14 green marbles, and 20 blue marbles. A marble was selected at random, the color was recorded, and the marble was placed back in the jar. The table shows the results after 60 trials.

What was the relative frequency of selecting a blue marble?

Enter your answer rounded to the nearest percent in the box.

Outcome Number of times outcome occurred
Red 22
Green 18
Blue 20

Answers

Answer: This is very late but but for helping other people in the future, the answer is 33. I took the test and it's correct. Here is a screenshot:

Step-by-step explanation:

(BRAINLIEST) The Arcadia Theater charges $4 for adult tickets and $3 for student tickets. Mr. Steele purchased 9 tickets (some student and some adult) for $31. Which system of equations could be used to find the number of adult tickets and student tickets purchased?
A. a + s = 31 ; 4a + 3s = 9
B. 4a + 3s = 31 ; a + s = 9
C. 3a + 4s = 31 ; a + s = 9
D. 3a + 4s = 9 ; a + s = 31

Answers

Answer:

B

Step-by-step explanation:

Please mark brainliest

B is the answer for this question

In terms of the number of moose, what is the relative frequency of male moose, female moose, adult moose, and baby moose? Write your answers as simplified fractions.

Answers

Answer:

I'm sorry is there a chart/graph, etc. to give us more information?

Without the added information there is no way for me to answer.

If you repost this question with a picture I would be more than happy to help.

Yea there needs to be on a chart or something

NO LINK ANSWERS
Line A is represented by the equation given below:

x + y = 4

What is most likely the equation for line B, so that the set of equations has infinitely many solutions? (1 point)


4x + 4y = 4

4x + y = 4

2x + 2y = 8

x + y = 8

Answers

Answer:

x + y = 8

Sorry i think its wrong and prabably is :( sorry

Answer:

To have infinitely many solutions they must describe the same line.  So any multiple or fraction of the reference line would indeed describe the same line, and thus "intersect" at each and every of an infinite number of points.

2(x+y=4)

2x+2y=8  (is the same line as x+y=4)

Determine whether each sample may be biased. Explain.
5. Rickie surveys people at an amusement park to find out the average size of people's immediate family

6. Theo surveys every fourth person entering a grocery store to find out the average number of pets in people's homes.

7. A biologist estimates that there are 1,800 fish in a quarry. To test this estimate, a student caught 150 fish from the quarry, tagged them, and released them. A few days later, the student caught 50 fish and noted that 4 were tagged. Determine whether the biologist's estimate is likely to be accurate.

NO FILES OR I REPORT grr >:-(

Answers

Answer:

7

Step-by-step explanation:

in 5 and 6 there are few flaws in their experiment, so there is no way to disprove the information they find. However in 7, the biologist can't prove that having 4 tagged fish out of 50 means there are 1,800 fish in that quarry. Therefore it is inaccurate and biased.

your help would be appreciated :)

Answers

Answer:A

Step-by-step explanation: use algebra to find the value in the absolute value symbols which is 10/3. Then multiply that by -1 which gets you -10/3. Then multiply -10/3 with the reciprocal of 5/6 which gets you -4

Determine whether each sample may be biased. Explain.
5. Rickie surveys people at an amusement park to find out the average size of people's immediate family

6. Theo surveys every fourth person entering a grocery store to find out the average number of pets in people's homes.

7. A biologist estimates that there are 1,800 fish in a quarry. To test this estimate, a student caught 150 fish from the quarry, tagged them, and released them. A few days later, the student caught 50 fish and noted that 4 were tagged. Determine whether the biologist's estimate is likely to be accurate.

NO FILES OR I REPORT grr >:-((

Answers

Answer:

not number 5 is is biased.

Number 6 is not biased.

Number 7 is not biased.

Step-by-step explanation:

Biased means of an estimator is the difference between this estimator's expected value and the true value of the parameter being estimated.

please i need help asap

Answers

Answer:

I think c over 5 i could be wrong

c/5 = 2.50
C = 12.50

HELP PLEASE- i attached the pic

Answers

i think it is distributive property maybe i’m not too sure


Step-by-step explanation:

ℎ 8 2 16 ℎ . 81 8 16-8 ℎ ℎ “ “

-

Use properties of rational numbers to multiply the following.

Answers

Answer:

D. -93/20

Step-by-step explanation:

-6/5 is -1.2 in decimal form so then you multiply -1.2 by 3.875 and get -4.65, convert that into a fraction and get -93/20.

It’s D. -14 13/20 or 93/20

Solve the equation 9r – 2 = 16 for r.
A. 1
B. 2
C. 4
D. 6

Answers

Answer:

Its B. two

Step-by-step explanation:

9·2 =18 and 18-2 =16

Answer:

B. 2

Step-by-step explanation:

[tex]9r-2=16[/tex]

First, add 2 to 2 and 16.

[tex]-2 + 2 = 0[/tex] (cancels itself out)

[tex]16 + 2 = 18.[/tex]

Now we are left with:

[tex]9r = 18[/tex]

Lastly, divide the coefficient from the answer.

[tex]18/9=2[/tex]

Therefore, the value of 'r' is 2.

Here is an attachment to make this clearer.

8x^2 + 25y

y = 2
x = 3

Answers

Answer: 122

Step-by-step explanation:

Solving the equation...

Substitute the values of x and y...

8(3^2) + 25(2)

= 122

Answer:

122

Step-by-step explanation:

8x^2+25y

8(3)^2 +25(2

72+ 50 =122

Yo someone hellp me and if you see this please click!

Answers

Answer:

3/4

Step-by-step explanation:

Answer: 3/4

Step-by-step explanation:

In decimal form, 2/5 is .4

In decimal form, 7/8 is .875.

In decimal form, 3/4 is .75.

In decimal form, 15/16 is .9375.

In decimal form, 1/3 is .3333.

In decimal form, 3/8 is .375.

3/4 is the only one in between.

pls help answer this


For each of the figures shown below, the existing coordinates are listed. Follow the instructions for each shape and perform the specified rigid motion. Clearly list ALL the coordinates for the new image.

Answers

We need to subtract 3 from the x-values and add 4 units to the y.

(2,3)
(-3,-1)
(2,-1)

(2-3,3+4)
(-3-3,-1+4)
(2-3,-1+4)

New coordinates:

(-1,7)
(-6,3)
(-1,3)

What is the volume help please

Answers

Answer:

Hi there! Your answer would be 136.08, because you must times all 3 numbers they give on the picture.

Step-by-step explanation:

Answer:136.08

Step-by-step explanation:

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