14. A contractor is required by a county planning department to submit one, two, three, four, or...
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14. A contractor is required by a county planning department to submit one, two, three, four, or ve forms (depending on the nature of the project) in applying for a building permit. Let Y 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?
c. What is the probability that between two and four forms (inclusive) are required?
d. Could p(y) y2/50 for y 1, . . . , 5 be the pmf of Y?
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Related Book For
Modern Mathematical Statistics With Applications
ISBN: 9780534404734
1st Edition
Authors: Jay L Devore
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