The numbers of weekly sales calls by a sample of 40 telemarketers were recorded in the table below. 14 8 6 12 21 4 9 0 25 17 9 5 8 18 16 3 17 19 10 15 5 20 17 14 19 7 10 15 10 8 28 31 27 30 2 17 26 11 29 19 a. Construct a frequency distribution and a relative frequency distribution for the data. (2 marks) b. Construct a cumulative frequency distribution and a cumulative relative frequency distribution for the data. (2 marks) c. Plot a relative frequency histogram for the data. (2 marks) Page 4 of 9 HA1011 APPLIED QUANTITATIVE METHODS GROUP ASSIGNMENT d. What proportion of the data is less than 20? (2 marks) e. What proportion of the data is more than 24? (2 marks) Use following class intervals to answer the above questions Classes Frequency Relative Frequency Cumulative Frequency Cumulative Relative Frequency 0 - 4 5 - 9 10 - 14 15 - 19 20 - 24 24 - 29 30 - 34