an athlete counted how many autographs he signed each day. what is the mean of the numbers?

Explanation:

Step1: Determine the number of autographs per day

From the bar - graph: Friday: 8, Saturday: 10, Sunday: 2, Monday: 8, Tuesday: 3

Step2: Calculate the sum of autographs

$8 + 10+2 + 8+3=31$

Step3: Calculate the number of days

There are 5 days.

Step4: Calculate the mean

The mean formula is $\text{Mean}=\frac{\text{Sum of values}}{\text{Number of values}}$. So, $\text{Mean}=\frac{31}{5}=6.2$

Answer:

$6.2$