The problem asks to find the median of the hours spent volunteering each day, as represented by the bar graph.

1. Problem Description

The problem asks to find the median of the hours spent volunteering each day, as represented by the bar graph.

2. Solution Steps

First, we need to read the number of hours spent volunteering for each day from the bar graph.

Sunday: 6 hours

Monday: 9 hours

Tuesday: 4 hours

Wednesday: 8 hours

Thursday: 7 hours

Friday: 9 hours

Saturday: 9 hours

Now, we have the following data set: $6, 9, 4, 8, 7, 9, 9$.

To find the median, we need to sort the data in ascending order: $4, 6, 7, 8, 9, 9, 9$.

Since there are 7 numbers in the data set, the median is the middle number, which is the $\frac{7+1}{2} = 4$th number in the sorted list.

The 4th number in the sorted list is

8.

3. Final Answer

8