I need help with figuring out where the each of the numbers go

4. Listed below are the ages (years) of presidents of the United States at the times of their first inaugurations. Construct a frequency distribution. Use a class width of 5 years and begin with a lower class limit of 40 years. Do the ages appear to have a normal distribution? 57 61 57 57 58 57 61 54 68 49 64 48 65 52 46 54 49 47 55 54 42 51 56 55 51 54 51 60 62 43 55 56 52 69 64 46 54 47 70