Question

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

Answer 1

The avg=50
No. of terms=100
So, sum=50*100=5000
New sum=5000-100+110=5010
New avg=5010/100=50.1
Median will remain the same as the last term has changed, which does not change the order of the terms.
And u better appreciate this answer. I wrote it on a jio phone.