#### Understanding

This lesson supports the transition from representing data in bar graphs to representing the data on a number line.

### What to look for

The mean is often called the average. Students should recognize the mean as a convenient summary statistic that is used extensively in the world around them.### Sample Assessment

What is the mean of the numbers: 4, 8, 3, 2, 5, 8, 12?

a. 4

b. 5

c. 6

d. 7

e. 8

Answer: c) 6