Unit 5: Data Review

The scatterplot shows the number of people in a party and the amount of the dinner bill at a local restaurant. Based on the scatterplot, how much would dinner for a party of 8 cost?

• $180

• $140

• $100

• $80

Which statement is best supported by the scatterplot?

• As the number of people in the park increases, the average wait time stays the same.

• As the number of people in the park increases, the average wait time increases.

• As the number of people in the park increases, the average wait time decreases.

• There is no relationship between the number of people in the park and the average wait time.

Based on the scatterplot, which is the best prediction of wait time for rides when there are 400 people in the amusement park?

• 20 minutes

• 30 minutes

• 45 minutes

• 55 minutes

The list shows the top speeds of 6 trains in miles per hour: 90, 120, 105, 130, 95, 135. What is the mean absolute deviation for these numbers?

• A. 112.5

• B. 95

• C. 15.8

• D. 45.5

Which statement is best supported by the scatterplot?

• A. There is a non-linear association between the test grade and the number of hours studied.

• B. There is a positive, linear association between the test grade and the number of hours studied.

• C. There is a negative, linear association between the test grade and the number of hours studied.

• D. There is no association between the test grade and the number of hours studied.

Based on the scatterplot, which is the best prediction of test score after studying for 5 hours?

• A. 70

• B. 75

• C. 80

• D. 95

2. What type of association would you expect to see between the amount of fog in the sky and the distance that a pilot can see?

• A. Positive association

• B. Negative association

• C. No association

• D. There is not enough information to tell.

Which scatterplot suggests a linear relationship between x and y? Select TWO correct answers.

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The scatterplot shows the hours practiced typing and the number of mistakes made per 100 words. Based on the scatterplot, how many mistakes per 100 words would be made after 40 hours of practice?

Which scatterplot does NOT suggest a linear relationship between x and y?

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