Question: Business Statistics Question 2 Rachel set a class test for her students. The test is marked out of 100%. Her students' marks are summarized in

Business Statistics

Question 2 Rachel set a class test for her students. The test is marked out of 100%. Her students' marks are summarized in the table below: Marks (100%) 15 Number of students 1 23 1 35 46 51 55 2 4 5 15 61 25 13 1 64 67 72 75 78 86 93 3 12 6 1 1 (a) Construct an appropriate frequency table and draw a histogram to depict the data above [10 marks] (b) Compute the mean [10 marks] (c) Calculate the variance and standard deviation [10 marks] (d) Calculate the coefficient of variation [5 marks) (e) Interpret the distribution in your histogram [5 marks]

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