The difference between the mean and median of the data 66, 59, 68, 65, 62, 59, 58, 56, 63, 65 is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 0.4
Mean = Sum of all observations/Total number of observations
(66 + 59 + 68 + 65 + 62 + 59 + 58 + 56 + 63 + 65)/10 = 621/10 = 62.1
Median = 56, 58, 59, 59, 62, 63, 65, 65, 66, 68 , Total terms = 10, Median = (5th + 6th) term/2
Median = (62 + 63)/2 = 62.5
Require difference = 62.5 - 62.1 = 0.4