Question: Business Statistics Question 3 (a) The table below represents the subject scores for 144 students. Male (M) 4 17 Female (F) 14 41 Total 18

Business Statistics

Question 3 (a) The table below represents the subject scores for 144 students. Male (M) 4 17 Female (F) 14 41 Total 18 58 Subject A: Business Ethics B: Macroeconomics C: Supply chain management D: Clinical Psychology Total 4 25 29 28 11 39 53 91 144 Calculate the following probabilities: (0) Prob (A) [2 marks] (ii) Prob (F) [2 marks] (iii) Prob ( AF) [3 marks] (iv) Prob (FA) [3 marks] (b) The number of newspapers sold daily at all 7-eleven outlets nationwide is normally distributed with a mean of 350 and a standard deviation of 30. Calculate the probability that less than 300 newspapers are sold in one day [7 marks] (0) Determine the number of newspapers that the 7-eleven stores should stock every day such that the probability of running out on any particular day is 10%. [6 marks]

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