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2. To assess the design of a new apartment building, the architect wants to know if residents will use an outdoor pool. The daytime temperature in the area is normally distributed with a mean of 20 "C. A coefficient of variation is also reported as 50%. A survey shows that residents do not use the outdoor pool if temperature is below 22 "C. a) What proportion of the time would it be desirable to use the outdoor pool? (5 marks) b) Above what temperature are the top 5% hottest days