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The numbers 3, 2, 8, 5, 7, 12, 9 and 14 are the marks scored...

The numbers 3, 2, 8, 5, 7, 12, 9 and 14 are the marks scored by a group of students in a class test. If P is scored by an group of students in a class test. If P is the mean and Q the median, the P + Q is

A.

18

B.

1712

C.

16

D.

15

Correct answer is D

Re-arranging them 2, 3, 5, 7, 8, 9, 12, 14

Mean = P and median = Q

P = 2+2+5+7+8+9+12+148

608 = 7.5

median (Q) = 7+82

152 = 7.5

P + Q = 7.5 + 7.5 = 15