Question

the mean and median of 100 observation are 50 and 52 respectively.The value of the largest observation is 100 . it was later found that it is 110 not 100 .Find true mean and median.

Answer 1

Median will not change as the total no of observations does not change.
Previous total=100*50=5000
Total should be =5000+(110-100)
=5010
True mean=5010/100=50.1

Hope this helps you.