The time taken by the rider to deliver foods to the Block Tuah is normally distributed with a mean of 12 minutes and a standard deviation of 2 minutes. He delivers food every day. With the aid of...

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Extracted text: The time taken by the rider to deliver foods to the Block Tuah is normally distributed with a mean of 12 minutes and a standard deviation of 2 minutes. He delivers food every day. With the aid of illustration/sketch of the normal distribution for each case, estimate the number of days during the year when he takes i. longer than 17 minutes, i. less than ten minutes, ii. between nine and 13 minutes.