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AP® Statistics

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Determine Sample Means

APSTAT-NJX4PW

Determine which of the following situations involve(s) calculations of sample means.

I. Survey $15$ people and define X as the number of people who eat fast food every day.
II. It has been determined that $29$ students out of the $35$ in Joe’s calculus class are passing.
III. In a survey of $15$ high school females, the average weight was $117$ lbs.

A

I only.

B

II only.

C

III only.

D

I and II only.

E

II and III only.