Question

guided practice
types of data
a study randomly chose 2000 stars and measured their distance away from earth. it was found that the average distance from earth was 280 light - years away. is this value a statistic or a parameter?
a. it is a statistic because the value describes a characteristic of a sample.
b. it is a statistic because the value describes a characteristic of a sample.
c. it is a parameter because the value describes a characteristic of a population.
d. it is a parameter because the value describes a characteristic of a sample.
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Explanation:

A statistic is a characteristic of a sample, while a parameter is a characteristic of a population. Here, 2000 stars are a sample of all stars. The average distance calculated from this sample is a statistic as it describes a characteristic of the sample.

Answer:

A. It is a statistic because the value describes a characteristic of a sample.