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Question no: 4 a. Given the following frequency distributions, fill in the missing frequencies and calculate the measures of dispersion. Class intervals Frequency Cumulative Frequency 100 -200 5 5 200 - 300 15 300 -400 12 400 - 500 500 -600 7 600 -700 4 52 b. Construct appropriate graphs, for the given scenario. Consider 6 people take a 5 question test. Suppose one student gets 5 correct answers, one gets 4 correct, one gets 3 correct, and so on, all the way down to the student getting none correct