For a group of 100 candidates the meanand standard deviation of their markswere found to be 60 and 15 respectively.Later on it was found that the scores 45and 72 were wrongly entered as 40 and27. Find the correct mean and standarddeviation.

For a group of 100 candidates the mean
and standard deviation of their marks
were found to be 60 and 15 respectively.
Later on it was found that the scores 45
and 72 were wrongly entered as 40 and
27. Find the correct mean and standard
deviation.

Match the items on the right to the items on the left.