1.

Find the median of 25,16,19,48,19,20,34,15,19,20,21,24,19,16,22,16,18,20,16,19

Answer»

In order to find the media of ungrouped data,we use the following steps:

1.Arrange the observations in ascending or descending order of magnitude.

2.find the TOTAL number of OBSERVATION,says 'n'.

Here two cases arise.The number is EITHER odd or even.

case 1:

if the number of observations is odd, then the median of observations is

(n+1/2).

case2:

if the number of observations is even,then the median of observations is

Xn/2 +n+1/2/2.



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