Free Printable Unit 6 Review

1.

Diego has some money in his bank account before he starts a summer job. He deposits the money from the summer job in his bank account and doesn’t spend any of it. After working 3 hours, he has $71 in the account. After working 12 hours, he has $134 in the account. How much money does Diego earn per hour?

a)

$11 per hour

b)

$7 per hour

c)

$23.67 per hour

d)

$5.25 per hour

2.

2 out of every 7 days comes on a weekend.

To the nearest percent, what percentage of days come on a weekend?

a)

27%

b)

28%

c)

29%

d)

30%

3.

12 out of 52 cards in a deck are face cards.

To the nearest percent, what percentage of cards in a deck are face cards?

a)

23%

b)

24%

c)

25%

d)

26%

4.

12 out of the 50 U.S. states have names that start with a vowel.

To the nearest percent, what percentage of U.S. states’ names start with a vowel?

a)

23%

b)

24%

c)

25%

d)

26%

5.

In many schools, students have the choice between taking art, music, or some other elective. At Euclid Middle School, there are 200 students in the 8th grade. 40 students are taking art. What percentage of 8th graders at Euclid Middle School are taking art?

a)

20%

b)

40%

c)

60%

d)

80%

6.

At Newton Middle School, there are 320 students in the 8th grade. 54 are taking music. To the nearest percent, what percentage of 8th graders at Newton Middle School are taking music?

a)

16%

b)

17%

c)

18%

d)

19%

7.

Students voted for their favorite entry in a Halloween costume contest. Jada recorded the results in a bar graph. Who got more votes: the angel or the zombie?

a)

angel

b)

zombie

8.

Students voted for their favorite entry in a Halloween costume contest. Jada recorded the results in a bar graph. How many votes did the vampire get?

a)

16

b)

17

c)

18

d)

19

9.

Students voted for their favorite entry in a Halloween costume contest. Jada recorded the results in a bar graph. Who won the contest?

a)

zombie

b)

angel

c)

werewolf

d)

vampire

e)

ghost

10.

An equation represents the data from the table, $n=-16.25p+230$ , where p represents the price and n represent the number of copies sold. Using this equation about how many books to you predict were sold at $7.00 a copy?

a)

115 books

b)

116 books

c)

117 books

d)

118 books

11.

An equation represents the data from the table, $n=-16.25p+230$ , where p represents the price and n represent the number of copies sold. Using this equation about how many books to you predict were sold at $14.00 a copy?

a)

2 books

b)

3 books

c)

4 books

d)

5 books

12.

Different stores across the country sell a book for different prices. The table shows the price of the book in dollars and the number of books sold at that price. Which of the following points would be an outlier?

a)

(11.35, 55)

b)

(9.50, 70)

c)

(9.99, 130)

d)

(8.75, 88)

13.

An equation represents the data from the table, $n=-16.25p+230$ , where p represents the price and n represents the number of copies sold. If a store only sold 21 copies of the book, what do you predict the price of the book to be, to the nearest cent?

a)

$12.83

b)

$12.84

c)

$12.85

d)

$12.86

14.

The graph of what linear equation is a good fit for this data?

a)

$y=-\frac{1}{3}x+2$

b)

$y=-\frac{1}{3}x+6$

c)

$y=\frac{1}{3}x+2$

d)

$y=\frac{1}{3}x+6$

15.

Select the relationship that demonstrate a positive association between variables.

a)

Outside temperature and cost to heat a home

b)

The number of miles you drive in a car and the amount of gas remaining in the tank

c)

Pounds of cherries you buy and amount of money you spend on cherries

d)

Speed of a train and the amount of time it takes for the train to get to its destination

16.

A computer program found that the line $c=2t-89$ is a good fit for the data.

Use this equation to predict how many cups of lemonade Lin might sell on a day when the high temperature is 74 degrees.

a)

56

b)

57

c)

58

d)

59

17.

The high temperature this Sunday is expected to be 5 degrees warmer than the high temperature this Saturday. Using the line $c=2t-89$ , how many more cups of lemonade should Lin expect to sell on Sunday than Saturday?

a)

8 cups

b)

9 cups

c)

10 cups

d)

11 cups

18.

Jada surveyed all 7th and 8th graders at her school about whether they had pets. According to this two-way table, how many total students do not have pets?

a)

116

b)

117

c)

118

d)

119

19.

At a school social, parents attended with their children. Everyone had a choice between a sweet snack and a salty snack. Here is a two-way table showing the number of adults and children who made each choice of snack. What percentage of adults chose salty snacks?

a)

60%

b)

61%

c)

62%

d)

63%

20.

At a school social, parents attended with their children. Everyone had a choice between a sweet snack and a salty snack. Here is a two-way table showing the number of adults and children who made each choice of snack. What percentage of children chose sweet snacks?

a)

69%

b)

70%

c)

71%

d)

72%

21.

Jada surveyed all 7th and 8th graders at her school about whether they had pets. According to this two-way table, to the nearest percent, what percentage of 8th graders have pets?

a)

50%

b)

51%

c)

52%

d)

53%

22.

A school club had a T-shirt sale to raise money. After the sale, an inventory showed that 108 blue T-shirts and 96 green T-shirts had been sold. The sizes of these T-shirts included 60 small, 86 medium and 58 larges. Which table best represents this data?

a)

b)

c)

d)

23.

The scatter plot shows the number of hits and home runs for 20 baseball players who had at least 10 hits last season. The table shows the values for 15 of those players. The model, represented by 𝑦=0.15𝑥−1.5, is graphed with a scatter plot. Player A had 154 hits in 2015. How many runs was he predicted to have?

a)

15

b)

22

c)

35

d)

47

24.

Here is a scatter plot that compares points per game to free throw attempts per game for basketball players in a tournament. The model, represented by 𝑦=4.413𝑥+0.377, is graphed with the scatter plot. Here, 𝑥 represents free throw attempts per game, and 𝑦 represents points per game. Based on the model, how many points per game would you expect a player who attempts 4.5 free throws per game to have?

a)

20.0

b)

20.1

c)

20.2

d)

20.3

25.

Which of these statements is true about the data in the scatter plot?

a)

As 𝑥 increases, 𝑦 tends to increase.

b)

As 𝑥 increases, 𝑦 tends to decrease.

c)

As 𝑥 increases, 𝑦 tends to stay unchanged.

d)

𝑥 and 𝑦 are unrelated.

26.

The linear model for some butterfly data is given by the equation 𝑦=0.238𝑥+4.642. Which of the following best describes the slope of the model?

a)

For every 1 mm the wingspan increases, the length of the butterfly increases 0.238 mm.

b)

For every 1 mm the wingspan increases, the length of the butterfly increases 4.642 mm.

c)

For every 1 mm the length of the butterfly increases, the wingspan increases 0.238 mm.

d)

For every 1 mm the length of the butterfly increases, the wingspan increases 4.642 mm.

27.

Which of the following describes the association in the scatter plot?

a)

Positive

b)

Negative

c)

Linear

d)

Non-linear

28.

Using the data in the scatter plot, what is a reasonable slope of a model that fits this data?

a)

-2.5

b)

-1

c)

1

d)

2.5

Unit 6 Review

Total questions: 28

Worksheet time: 28mins

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