The mean number of hours for these students 10.3
Explanation:Given the following data:
11, 11, 4, 9, 10, 17
The mean is the sum of the data divided by the number of elements in the data.
Sum of data is:
11 + 11 + 4 + 9 + 10 + 17 = 62
Number of elements in the data is:
6
The mean is now:
62/6 = 10.3