Solution:
we are given that
Dukes science quiz scores are 99,91,60,94,and 95 .
we have been asked to describe the effect of the outlier on the mean and median.
Mean of the given data
Mean of the given data
Median of the given data after arranging in the ascending order 60,91,94,95,99 is 94.
The outlier is 60.
The outlier is decreasing the value of Mean by 
The outlier is decreasing the value of Median by 