LESSON: Mean, Median, and Mode

Introduction

Mean, Median and Mode

In this lesson, you will learn how to use the following skills.

  • Find the mean of a set of data.
  • Find the median of a set of data.
  • Find the mode of a set of data.
  • Identify the range of a set of data.
  • Select the best average to represent given sets of data.

Vocabulary

Mean
the average of a set of numbers. The mean gives us a good overall assessment of a set of data.
Maximum
the greatest score in a data set
Minimum
the smallest score in a data set
Median
the middle score in a data set
Mode
the number or value that occurs most often in a data set
Range
the difference between the smallest value in a data set and the greatest number in a data set
Measures of Central Tendency
a way of selecting which value in a data set best expresses the set of data.