Pearson Algebra 2 Common Core, 2011
PA
Pearson Algebra 2 Common Core, 2011 View details
Chapter Review
Continue to next subchapter

Exercise 1 Page 751

We are asked to complete the following sentence.

A(n) is part of population.

Let's recall that, in statistics, a population is all members of a group of interest. In other words, a population is all of the people about which we are looking for information. In some cases, it would be difficult for us to ask every person in our population. This is why we usually use a part of the population, which is called a sample.

random sampling

Here are a few examples of populations and possible samples from each one.

Population Sample
The population of the U.S.A. A randomly chosen thousand U.S. citizens
The population of the student body All of the people from your class
All potential consumers of a new product Volunteers that want to fill out a survey

Now we are able to complete the sentence.

A is part of population.