Question

Calculate mean and median for the following data.
15,12,5,13,12,15,1,15,9,8
OR
11​

Answer 1

✧Given numbers-

15,12,5,13,12,15,1,15,9,8

✧To find-

Mean and Median

⚫Mean-

$m=\frac{sum\:of\:terms}{Number\:of\:terms}$

$Mean=\frac{15+12+5+13+12+15+1+15+9+8}{10}$

$Meam=\frac{105}{10}$

∴ Mean=10.5

⚫Median-

Median is the middle value. So, wee will arrange the numbers in ascending order.

1, 5, 8, 9, 12, 12, 13, 15, 15, 15.

Since the number of terms is even, there are two numbers in the middle.

So, we will find the average of them.

➣ $\frac{12+12}{2}$

➣ $\frac{42}{2}$

➣ 12

∴ The median is 12.