## Section 5

# Errors in Sampling

Details about this book
Book
Version 1

By Boundless

By Boundless

Boundless Statistics

Statistics

by Boundless

4 concepts

Expected Value and Standard Error

Expected value and standard error can provide useful information about the data recorded in an experiment.

Using the Normal Curve

The normal curve is used to find the probability that a value falls within a certain standard deviation away from the mean.

The Correction Factor

The expected value is a weighted average of all possible values in a data set.

A Closer Look at the Gallup Poll

The Gallup Poll is an opinion poll that uses probability samples to try to accurately represent the attitudes and beliefs of a population.