3. The following are the number of babies born during a year in 60 community hospitals 30 55 27 45 56 48 45 49 32 57 47 56 37 55 52 34 54 42 32 59 35 46 24 57 32 26 40 28 53 54 29 42 42 54 53 59 39 56 59 58 49 53 30 53 21 34 28 50 52 57 43 46 54 31 22 31 24 24 57 29 (a) Construct a frequency distribution using the class intervals 20-24, 25-29, 30-34, ... (b) Find the relative frequencies and the cumulative frequencies of the frequency distribution.