Properties of Probability Distributions Answers

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The population is

the seventy-five selected students.

all juniors at the high school.

all students at the high school.

The sample is

the seventy-five juniors selected.

all juniors at the high school.

all students at the high school.

What range would you expect 95% of the sample’s study times to be between if the sample was approximately normal?

25–45 minutes

10–35 minutes

15–55 minutes

5–65 minutes

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