Question: Need help in working out this question. 8. The time taken by a man to mow his lawn follows a distribution with a mean of

Need help in working out this question.

8. The time taken by a man to mow his lawn follows a distribution with a mean of 35 minutes and a standard deviation of 6 minutes. If he mows his lawn a total of 25 times, what is the probability that the mean time taken will be less than 34 minutes? 9. The time taken by a man to mow his lawn follows a Normal distribution with a mean of 35 minutes and a standard deviation of 6 minutes. What is the probability the time taken will be less than 34 minutes

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