Question

Q6 Find the mean and median
11, 12, 15, 9, 16, 11, 6, 13, 12​

Answer 1

Answer:

Mean- 94.34 Median- 12

Answer 2

Answer:

$mean \: = \frac{sum \: of \: observations}{number \: of \: observations} \\ = \frac{11 + 12 + 15 + 9 + 16 + 11 + 6 + 13 + 12}{9} \\ = = > \frac{105}{9} = 11.6$

$median \: = \: insert \: them \: in \: ascending \: order \\ 6,9,11,11,12,12,13,15,16 \\ median \: = 12$