Question

determine whether the given value is a statistic or a parameter.
a bookseller measured the average number of visitors to his store on 5 days of a given week, and the average (mean) value is 100 visitors.
choose the correct answer below.
a. the given value is a parameter for the week because the data - collected represent a sample.
b. the given value is a statistic for the week because the data - collected represent a population.
c. the given value is a statistic for the week because the data - collected represent a sample.
d. the given value is a parameter for the week because the data - collected represent a population.

Explanation:

A parameter describes a characteristic of a population, while a statistic describes a characteristic of a sample. Here, since the data is from 5 shops (a sample) of a giant book - store, the average measured value is a statistic.

Answer:

B. The given value is a statistic for the work because the data collected represents a sample.