Of a large group of men, 5 are under 60 inches in height and 40 are between 60 and 65 inches. Assuming a normal distribution, find the mean height and standard deviation.
a) Mean: 62 inches, Standard Deviation: 2 inches
b) Mean: 63 inches, Standard Deviation: 2 inches
c) Mean: 62 inches, Standard Deviation: 3 inches
d) Mean: 63 inches, Standard Deviation: 3 inches