As of 2011, the following are the ages at which a country's presidents were inaugurated
54, 46, 66, 60, 46, 53, 44, 54, 58, 61, 44, 54, 50, 56, 54, 53, 58, 68, 63, 53, 44, 55, 60, 53, 65, 48, 52, 56, 60, 55, 69, 68, 52, 44, 48, 60, 45, 58, 66, 42, 66, 48, 50, 57
Construct a grouped frequency distribution for the data. Use 41 - 45 for the first class and use the same width for each subsequent class.
Type the frequency value for each.