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Business Statistics DAF 1101: BUSINESS STATISTICS I CAT QUESTION ONE [30 MARKS] a) The following data relate to the profit of 1000 companies. Profits 100-120

Business Statistics

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DAF 1101: BUSINESS STATISTICS I CAT QUESTION ONE [30 MARKS] a) The following data relate to the profit of 1000 companies. Profits 100-120 120-140 140-160 160-180 180-200 200-220 220-240 Number of 17 53 199 194 327 208 2 companies Calculate mean mode and standard deviation (10 Marks) b) Calculate the coefficient of skewness and comment on its value (10 Marks) Profits 100-120 120-140 140-160 160-180 180-200 200-220 220-240 Number of 17 53 190 194 327 208 2 companies C) Critically examine the different methods of measuring dispersion. (5 Marks) d) Statistics plays an important role in all field of life. Explain. (5Marks)

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