There are =100 data points included in the dotplot. Estimate the mean and the standard deviation for the data in the dotplot given above. Round the mean to the nearest integer and the standard deviation to the nearest half-integer.
a) Mean: 55, Standard Deviation: 23.5
b) Mean: 45, Standard Deviation: 21.5
c) Mean: 60, Standard Deviation: 25.5
d) Mean: 50, Standard Deviation: 22.5