Basics Stats

Mean
A mean score is an average score, often denoted by X. It is the sum of individual scores divided by the number of individuals.

Median

The median is a simple measure of central tendency. To find the median, we arrange the observations in order from smallest to largest value. If there is an odd number of observations, the median is the middle value. If there is an even number of observations, the median is the average of the two middle values.

Mode

The mode is the most frequently appearing value in a population or sample.