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Category > Statistics Posted 20 Jun 2017 My Price 5.00

A professor pays 25 cents for each blackboard error made in lecture to the student

A professor pays 25 cents for each blackboard error made in lecture to the student who points out the error. In a career of n years filled with blackboard errors, the total amount in dollars paid can be approximated by a Gaussian random variable Yn with expected value 40n and variance 100n. What is the probability that Y20 exceeds 1000? How many years n must the professor teach in order that P[Yn > 1000] > 0.99?

 

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Alpha Geek
(8)
Status NEW Posted 20 Jun 2017 10:06 AM My Price 5.00

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