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Chapter 12: Problem 38

What is a population? What is a sample?

Short Answer

Expert verified
In statistics, a population refers to the complete set of observations that can be made, while a sample is a subset of the population that is selected to represent the entire group. The major difference between the two is that population includes all members of a certain group while a sample only includes a portion of the group to represent the whole population.

Step by step solution

01

Definition of Population

In statistics, a population refers to the total set of observations that can be made. For example, if we are looking at the height of adult males in Japan, the population would be all adult males in Japan.
02

Definition of Sample

A sample, on the other hand, is a subset of the population that is selected to represent the entire group as a whole. In this context, it would be a selected number of adult males in Japan. This is often done when gathering information or data for the entire population is too time-consuming or costly.
03

Difference between Population and Sample

The key difference between a population and a sample is that a population includes all members of a specified group (all adult males in Japan) while a sample only includes a portion or subset of that group, which is chosen to represent the whole population.

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