Find the median in a nonsymmetrical distribution. In a bell shaped or symmetrical the mean and median are the same thing.

​Center

Center and Spread of Data

To find the spread find the "Range" by subtracting your biggest and smallest numbers.

Spread

Peak- the highest point of data

Cluster- a group of data together.

Clusters and Peaks

​Shape

​Bell, Uniform, Symmetrical

​In this type of graph, the mean and the median are the same

​Shape

Skewed Right

​In this type of graph, the median is less than the mean

​Shape

Skewed Left

​In this type of graph, the median is greater than the mean

​Outlier

• ​An outlier is a value far from the rest of the data in a set

• ​Removing or adding an outlier will affect the range

• Removing or adding an outlier will not (most of the time) affect the median

• Removing or adding an outlier will affect the mean​