Data Analysis — Test

Question 1

Which of the following is a true statement regarding the information shown in the histogram?

Revolt · Accepted Answer

Wingspan is a continuous quantitative variable.

Question 2

Which interval accounts for the lowest percentage of response times?

Revolt · Accepted Answer

80–90 seconds

Question 3

Which of the following statements is true?

Revolt · Accepted Answer

There is a smaller standard deviation in the distribution of the number of cars in lot B.

Question 4

Which statement best compares the shapes of the distributions of the quiz scores for the two classes?

Revolt · Accepted Answer

The distribution of quiz grades for class 1 appears to be skewed left, and the distribution of quiz grades for class 2 appears to be fairly symmetric.

Question 5

Which of the following statements best describes the dotplot?

Revolt · Accepted Answer

The distribution of quiz scores is skewed left with a center around 24 and varies from 12 to 30. There are possible outliers at 12, 14, 15, and 16.

Data Analysis — Test Answers

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