Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 19 Sep 2017 My Price 5.00

western civilization

College: Core Requirement Susan is taking western civilization this semester on a pass/fail basis. The department teaching the course has a history of passing 77% of the students in western civilization each term. Let n = 1 , 2, 3, . . . representthe number of times a student takes western civilization until the first passinggrade is received. (Assume the trials are independent.)

(a) Write out a formula for the probability distribution of the random variable n.

(b) What is the probability that Susan passes on the first try (n = 1)?

(c) What is the probability that Susan first passes on the second try (n = 2)?

(d) What is the probability that Susan needs three or more tries to pass western civilization?

(e) What is the expected number of attempts at western civilization Susan must make to have her (first) pass?

Answers

Maurice Tutor
(5)
Status NEW Posted 19 Sep 2017 06:09 AM My Price 5.00

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