Investigating Data - Test Test

Question 1

Which graph shows data whose r -value is most likely closest to 1 ?

Revolt · Accepted Answer

A: Image with description A graph shows both axes unnumbered. Points show an upward trend.

Question 2

A variety of two types of snack packs are delivered to a store. The box plots compare the number of calories in each snack pack of crackers to the number of calories in each snack pack of trail mix. Expand Image Which statement is true about the box plots?

Revolt · Accepted Answer

C: The number of calories in the packs of trail mix have a greater variation than the number of calories in the packs of crackers.

Question 3

Which graph shows a negative correlation?

Revolt · Accepted Answer

C: Image with description A graph with both axes unnumbered. Points show a downward trend.

Question 4

The data set represents the total number of people who bought bananas each hour at a grocery store. 1, 1, 5, 5, 7, 8, 8, 10, 12 Which box plot correctly represents the data?

Revolt · Accepted Answer

B: Image with description A number line goes from 0 to 16. The whiskers range from 1 to 12, and the box ranges from 3 to 9. A line divides the box at 7.

Question 5

Justin packed two suitcases for his trip and compared the weights of the items he packed in each of the suitcases. Expand Image Which statement is true about the box plots?

Revolt · Accepted Answer

A: The data for suitcase 1 have an outlier, but the data for suitcase 2 does not.

Question 6

The data set represents the total number of tickets each person purchased for a play. 0 comma 0 comma 1 comma 1 comma 1 comma 2 comma 2 comma 2 comma 4 comma 4 What is the median of the data?

Revolt · Accepted Answer

B: 1 point 5

Question 7

Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about acceleration due to gravity. The program reports line segment x is equal to 31 point 5 and sigma is equal to 2 point 5 What is the variance of the data? Round to the nearest tenth.

Revolt · Accepted Answer

A: 6 point 3

Question 8

How many rain gauges recorded rainfall?

Revolt · Accepted Answer

C: 16

Question 9

Create a histogram to represent the data. Which statement is most likely true about the mean and the median of the data?

Revolt · Accepted Answer

B: The histogram is left-skewed, so the mean is less than the median.; C: The histogram is right-skewed, so the mean is greater than the median.

Question 10

What statement is true about the mean of the sums of the two spinners?

Revolt · Accepted Answer

A: The mean is the same as the median.; B: The mean is 12.

Investigating Data - Test Test Answers

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