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# Hello i need help with this question please. please let me know how you came up with the answer so i can know. 11. A research concludes that the

Hello i need help with this question please. please let me know how you came up with the answer so i can know.

11. A research concludes that the number of hours of exercise per week for adults is normally distributed with a mean of 4 hours and a standard deviation of 2.5 hours. Show all work. Just the answer, without supporting work, will receive no credit. (a) What is the probability that a randomly selected adult has at least 5 hours of exercise per week (round the answer to 4 decimal places) (b) Find the 75th percentile for the distribution of exercise time per week. (round the answer to 2 decimal places)