Question

determine whether each observation below is a statistic or a parameter.
a. the average heart pulse rate of 100 students. select an answer
b. the average age of all full - time oxnard college students. select an answer
c. the number of marriot hotels in california. select an answer
d. the percentage of students in a poll who come to school by bus. select an answer
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Explanation:

Step1: Recall definitions

A statistic is a characteristic of a sample, and a parameter is a characteristic of a population.

Step2: Analyze part a

The 100 students are a sample. So the average heart - pulse rate of 100 students is a statistic.

Step3: Analyze part b

All full - time Oxnard College students is a population. So the average age of all full - time Oxnard College students is a parameter.

Step4: Analyze part c

The set of all Marriot hotels in California is a population. So the number of Marriot hotels in California is a parameter.

Step5: Analyze part d

The students in the poll are a sample. So the percentage of students in a poll who come to school by bus is a statistic.

Answer:

a. Statistic
b. Parameter
c. Parameter
d. Statistic