Question

b. Find the mean and the median of
i). 5,9,10,11 and 15
​

Answer 1

mean = 5+9+10+11 + 15/5

8 is mean

Answer 2

Answer:

mean 10 , median 10

Step-by-step explanation:

mean = sum of all observations/ total number of observation

= 5+9+10+11+15/5

= 50/5

=10

median

first arrange in ascending order

5,9,10,11,15

n /2 th number if even

n+1/2 th number if odd

now n is odd so n+1/2

= 5+1/2

= 6/2

= 3 rd number

3rd number is 10