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LUULIS spend scuoying per week have a distribution skewed to the right with a mean of...

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LUULIS spend scuoying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 2
LUULIS spend scuoying per week have a distribution skewed to the right with a mean of 8.6 hours and a standard deviation of 28 houm Find the probability that the mean time spent studying per week for a random sample of 49 college students would be between 8.2 and 8.9 hours. Round your answer to two decimal places. Attach File Browse My Computer Browse Content Collection Browse Dropbox QUESTION 4 Let x denote the time it takes to run a road race. Suppose x is approximately normally distributed with a mean of 195 minutes and a standard deviation of 24 minutes. If one runner is selected at random, what is the probability that this runner will complete this road race in less than 187 minutes? Round your answer to four decimal places Attach File Browse My Computer Browse Content Collection Browse Dropbox Click Save and Submit to save and submit. Click Save All Answers to save all on 30 MacBook Air BBB # 3. $ 4 % 5 2 & 7 6

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Solution :- Given that I u = 195 6 =24 p(x < 187 11 X-M < 187 - 195 24 6 = p (z <-0.34) 0.3669 Probability 0.3669

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