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step by step Question 4 (4 Marks) The wait times for an oil change are normally distributed with a mean of 33 minutes and a

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Question 4 (4 Marks) The wait times for an oil change are normally distributed with a mean of 33 minutes and a standard deviation of 5 minutes. Explain your answers. a) Find the probability customer waits more than 30 minutes. b ) Find the maximum wait time for the bottom quartile of customers

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