Question

The median of observations 10, 11, 13, 17 ,X + 5 ,20, 22 ,24 and 53 (are arranged in ascending order) is 18; find the value of x.

Answer 1

Step-by-step explanation:

Total number of observations = 9 (odd)

Now, if n = odd

Median =(

2

n+1

)

th

term

⇒ Median =(

2

9+1

)

th

term =5

th

term =x+5

Now, Median = 18 (given)

∴x+5=18

⇒x=13