A contractor is required by a county
Chapter 0, Problem 7.18(choose chapter or problem)
A contractor is required by a county planning department to submit anywhere from one to five forms (depending on the nature of the project) in applying for a building permit. Let y be the number of forms required of the next applicant. The probability that y forms are required is known to be proportional to y; that is, p(y) ky for y 1, . . . , 5. a. What is the value of k? (Hint: .) b. What is the probability that at most three forms are required? g p1 y2 1 c. What is the probability that between two and four forms (inclusive) are required? d. Could for y 1, 2, 3, 4, 5 be the probability distribution of y? Explain
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