If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k
- 58
- 38
-
19
- 11
- 967
The correct answer is: 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