Chapter 6 Data Analysis and Displays OST Review (8th Grade)

1. A restaurant manager surveys 80 people in two different age groups on whether they prefer turkey or chicken sandwiches. Which two-way table shows no association between age and sandwich alone?

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2016 #13

Which graph shows a line of best fit for the data?

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2017 #2

What is the total number of students the teacher surveyed?

Hint: If the girls playing soccer is 56%, What is percentage of girls ride a bicycle? Set up a proportion to find the total of the girls.

Mathematical Equivalence

ON

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2017 #21

A company surveys 200 shoppers to find out what type of bottled water they prefer. The partial two-way table shown gives the results of the survey as relative frequencies. What is the missing value in the table?

Mathematical Equivalence

ON

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CCSS.8.SP.A.4

A company surveys 200 shoppers to find out what type of bottled water they prefer. The partial two-way table shown gives the results of the survey as relative frequencies. Based on the results in the table, how many shoppers are men who prefer mineral water?

Mathematical Equivalence

ON

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CCSS.8.SP.A.4

A scatterplot is shown. Which statement about the scatterplot is true?

• There is no association between x and y.

• There is a positive, linear association between x and y.

• There is a negative, linear association between x and y.

• There is a nonlinear association between x and y.

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Practice Test #4

The number of inches of rain, y, after x minutes of rainfall during a storm can be modeled by the equation shown. y= 0.003x How many inches of rain falls in 2 minutes?

Mathematical Equivalence

ON

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CCSS.HSF-LE.A.1B

A scatterplot of some data is shown. Which model best represents the data?

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Practice Test #17

A runner tracks his distance in miles, y, traveled over time in hours, x. He uses the equation shown as a model for his data. y = 8.2x. What does the 8.2 represent in this situation?

• the runner’s average speed

• the total time the runner travels

• the total distance the runner travels

• the distance traveled by the runner at any time

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2021 #33

A researcher surveys 60 employees at a company about their highest education level and the number of years of experience they have. The results are shown. - 40 employees have a bachelor’s degree. - 20 employees have at least 5 years of experience and a bachelor’s degree. - 15 employees have at least 5 years of experience and a master’s degree. Complete the table to show the results of the survey.

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• At least 5 years experience and Masters

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• Less than 5 years and Bachelors

• 15

• Less than 5 years and Masters

• 5

• At least 5 years experience and Bachelors

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2021 #5