Question

Mr. Merritt kept track of the number of hours his 7 students spent doing volunteer work. His records showed:
7 hours9 hours7 hours7 hours9 hours5 hours6 hours
What was the mean number of hours spent doing volunteer work? Round your answer to the nearest whole number.

hours

Answer 1

To find the mean number of hours spent doing volunteer work, we first need to sum the hours and then divide by the number of students.

The hours recorded are:
7, 9, 7, 7, 9, 5, and 6.

Now, let's calculate the total:

\[
7 + 9 + 7 + 7 + 9 + 5 + 6 = 50
\]

Next, we divide the total hours by the number of students:

\[
\text{Mean} = \frac{\text{Total Hours}}{\text{Number of Students}} = \frac{50}{7} \approx 7.14
\]

Finally, rounding 7.14 to the nearest whole number gives us:

\[
\text{Mean} \approx 7
\]

Thus, the mean number of hours spent doing volunteer work is **7 hours**.