Correct Answer: Option C

Explanation

To calculate Mean:

add up all the numbers ⇒ 3+5+8+k+14+17 = 47 + k

 then divide by how many numbers there are ⇒ 6

The Mean is already given as 11 

11 = (47 + k) / 6

Cross multiply to solve for k

: k = (6 X 11) - 47 

k = 19

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