Unit E: Measurement and Data

Topic 10: Sampling

10-1: Populations and Samples

Part 1

Intro

A population is the complete set of items being studied.

A sample of a population is a part of the population. A sample is useful when you want to find out about a population, but you do not have the resources to study every member of the population.

Each member in the sample is called a subject.

Example Understanding Populations and Samples

You are investigating the lengths of all of the words in a book. Determine whether each description is a population or a sample.

  • a. All of the words on a page of the book

  • b. Every other word in the book

  • c. All of the words in the book

  • d. One word in the book


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Table of Contents

Digits, Grade 7, Volume 2, Homework Helper Unit E: Measurement and Data Unit F: Personal Financial Literacy Unit G: Step-Up Lessons English/Spanish Glossary Formulas Math Symbols Formulas Measures Properties