Stats L Unit 3 Vocabulary

Front

Standard deviation

Back

A measure of how far values in a data set are from the mean.

Front

Normal distribution

Back

A probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean. Also known as a bell curve.

Front

Mu

Back

Mean

Front

Sigma

Back

Standard deviation

Front

Z-Score

Back

The number of standard deviations a value is from the mean.

Front

68-95-99.7 rule

Back

Shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution.