Q.

The following observations have been arranged in ascending order. If the median of the data is 63, find the value of x. 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95

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Detailed Solution

Median: For finding the median we first arrange the observation in ascending order as follows,

Ascending order : 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95

Median = 63

63 =  Size of (n2+ ( n2+1) th observation /2

63 = size of (10/2) + Size of (10/2 + 1)th / 2

63 = size of (5th+ Size of (6th) / 2

63 = ( x + x+2 )/2

63 = ( 2x + 2)/2

63 = 2( x + 1)/2

63 = (x + 1

x = 63 - 1

x = 62

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