some students compared how many clubs they belong to. what is the mean of the numbers?

Explanation:

Step1: Identify the data values

From the bar - chart, the number of clubs for each student: Gene has 4, Stacy has 4, Wesley has 4, Amy has 2, Eve has 10, Jade has 2, Zachery has 7, Larry has 3.

Step2: Calculate the sum of the data values

$4 + 4+4 + 2+10+2+7+3=\sum x=36$

Step3: Determine the number of data points

There are 8 students, so $n = 8$.

Step4: Calculate the mean

The mean $\bar{x}=\frac{\sum x}{n}=\frac{36}{8} = 4.5$

Answer:

4.5