Question

find mean and median for the following observations :- 15,14,19,20,14,15,16,14,18​

Answer 1

Mean =

$15 + 14 + 19 + 20 + 14 + 15 + 16 + 14 + 18 \div 9 =$

145÷ 9= 16

Answer 2

Step-by-step explanation:

Mean = Sum of observations/Number of observations

          =15+14+19+20+14+15+16+14+18/9 = 16.11

Median:

14,14,14,15,15,16,18,19,20

[written in ascending order]

For odd number of observations, median is the middle observation (9+1/2 = 5th observation)

Median = 15