Question

find the median of 9,12,15,17,18,23,23,28,56,57,83​

Answer 1

Answer:

12,17,3,14,5,8,7,15

No' of observations (n) =8

first of all we arrange the observations in an ascending order

3,5,7,8,12,14,15,17

Here observe that No' of observations (n) is even so

Median is average of

2

n

th term and (

2

n

+1) th term

Median =

2

2

n

th term+(

2

n

+1)th term

=

2

2

8

th term+(

2

8

+1)th term

=

2

4th term+5th term

=

2

8+12

=

2

20

Median = 10

Answer 2

9,12,15,17,18,23,23,28,56,57,83

Ascending order= 9,12,15,17,18,23,23,28,56,57,83

Here no. of observations=11

Therefore the middle/central no.= median =23