Question

if the median of data 12, 24, 30, 36, 37, 40, 3m, 3m+4, 52, 57, 59, 62, 67, 70 arranged in ascending order is 47, find the value of m. ​

Answer 1

⇒n = 14 , Median = 47

⇒So , Median = [(n/2 ) term + (n/2 +1 ) term] / 2 ( As here n = 14 which is even)

⇒ 47 = (3m +3m+4)/2

⇒94 -4 = 6m

⇒m = 90/6 =15

So m = 15

Answer 2

Hey Bro :P

Since there are 14 numbers therefore n=14

when n=even then median is 1/2(n/2th term + n/2 +1 th term)

1/2(7th + 8th term)=47

3m+3m+4=94

6m=90

m=15