Statistics Definitions > Confidence Level When a poll is reported in the media, a confidence level is often included in the results. For example, a survey might report a 95 percent confidence level. But what exactly does this mean? At…

# Confidence Interval: How to Find a Confidence Interval: The Easy Way!

Probability and Statistics > How to Find a Confidence Interval If you’re just beginning statistics, you’ll probably be finding confidence intervals using the normal distribution (see #3 below). But in reality, most confidence intervals are found using the t-distribution (especially…