Question

find the mean and median of first 9 natural numbers​

Answer 1

Answer:

Step-by-step explanation:

mean = ??

median = 5

Answer 2

Answer:

sumof first number number can be given be n(n+1)/2

it's mean = n(n+1)/2 ÷ n = (n+1)/2

here n =✓9

then mean = (9+1)/2 = 10/2 = 5

median = (n +1)/2th term = 5th term 5th is 5 so median is also 5