Lesson: The Mean of a Data Set

In this lesson, we will learn how to find the mean of a set of data and how to use it to find missing data.

Explainer

Download

Sample Question Videos

02:28
03:15
01:47

Worksheet: 25 Questions • 4 Videos

Q1:

Which of the following data sets has a mean of 59?

Q2:

In order to get a C in math, William must have an average score of 70 or more. His test scores so far are 63.3, 85, 79.73, and 70.57. Calculate the minimum score William needs to get on his final test to earn a C.

Q3:

The table shows the number of subscribers of several internet providers. What is the mean number of subscribers for these internet providers?

Internet Provider	Company A	Company B	Company C
Subscribers (millions)	1.65	1.16	1.9

Preview Download