Mode

The most common number in a data set; can have more than one mode

Ex: 3, 5, 11, 11, 5, 2, 11, 7, 11

The mode is 11

Range

The difference between the maximum (biggest number) and the minimum (smallest number) in the data set

Minimum

The smallest number in the data set

Maximum

The largest number in a data set

Clustered Random Sampling

When items or people are clustered into groups and a random sample from the cluster is chosen, but all within the cluster are examined

Sample

An individual or group from a population

Convenience Sampling

A sample chosen because the individuals are the easiest to reach

Observational Study

A study done by watching and recording the behavior and activities of an individual or group

Skewed Right

The majority of the data is on the left end and becomes less the further down the right end the data goes; data creates a tail extending on the right end of the graph

Skewed Left

The majority of the data is on the right end and becomes less the further down the left end the data goes; data creates a tail extending on the left end of the graph