Find the mean
7 , 1 , 3 , 3 , 1 , 9
*
24
12
4
6
The mean is calculated by adding up all the numbers and then dividing by the total number of numbers.
(7 + 1 + 3 + 3 + 1 + 9) / 6 = 24 / 6 = 4
Therefore, the mean of the numbers 7, 1, 3, 3, 1, and 9 is 4.
So, the correct answer is:
4