Question

the median of the observations 6,21,9,19,15,13 is ???​

Answer 1

Answer:

Let us arrange the numbers in ascending order as below.

7,14,15,21,22,23,24

Number of items n=7

Median =(2n+1)th observation           (∵n is odd)

            =(27+1)th observation

            =4th observation =21

(ii) Let us arrange the numbers in ascending order

     7,9,10,12,13,15,17,21,32,42.

Number of items n=10

Median is the mean of (2n)th and (2n+1)th observations.        (∵n is even)

(2n)th observation =(210)th observation =5th observation =13

(2n+1)th observation =6th observation =15.

∴ Median =213+15=14

Step-by-step explanation:

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