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Question 6

`(0)/(12)pts`

2 Details Question #6 (12 points - 3 points each ) Scores on Professor Combs' Statistics Final Exams have a long term history of being normally. distributed, with a mean of

`\mu =70`

and a standard deviation of

`\sigma =9`

a.) Find the probability that a single student will score above a 75 on the Final exam. b.) Find the probability that a single student will score between a 65 and 75 on the Final exam. c.) Find the probability that an entire class of 20 students will have a class average above a 75 on the exam. d) Find the probability that an entire class of 20 students will have a class average between 65 and 75 on the Final exam.