Answer:
19
Explanation:
mean = (sum of numbers)/(number of numbers)
3, 5, 8, k, 14, 17
There are 6 numbers.
The sum of the numbers is 3 + 5 + 8 + k + 14 + 17
mean = (3 + 5 + 8 + k + 14 + 17)/6
mean = 11
(3 + 5 + 8 + k + 14 + 17)/6 = 11
(47 + k)/6 = 11
47 + k = 66
k = 19