Starting with a fairly well clustered, bell-shaped data set (histogram), what happens if one of the smaller data points is replaced with one much smaller than the others? Starting with a fairly well clustered, bell-shaped data set (histogram), what happens if one of the smaller data points is replaced with one much smaller than the others? The mean will increase by a large amount The median will decrease by a large amount The quartiles and IQR will not change The standard deviation will decrease