Definition

Understand, interpret and draw conclusions from a set of data, chart, or table. Analyze data by identifying properties such as mode, median, and mean.

Example

Wilson has a set of data consisting of $7$ integers. If $2$ numbers greater than the median and $2$ less than the median are added to the set, which of the following statements must be true?

1. The mean has stayed the same
2. The median has stayed the same
3. The mode has stayed the same