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Target Inc. randomly draws 8 different gift vouchers to be given to selected loyal customers eacl day. For today, they draw the $5 gift voucher. What is the expected number of days until this gif voucher is again drawn? What is the probability that this gift voucher is drawn twice exactly 10 days from now? Let X denote a negative binomial random variable. (Show solutions) a. NONE O b. E(X) = 10 days, P(X=10) = 0.0483 O c. E(X) = 8 days, P(X=10) = 0.0483 O d. E(X) = 8 days, P(X=10) = 0.0387

Target Inc. randomly draws 8 different gift vouchers to be given to selected loyal customers eacl day. For today, they draw the $5 gift voucher. What is the expected number of days until this gif voucher is again drawn? What is the probability that this gift voucher is drawn twice exactly 10 days from now? Let X denote a negative binomial random variable. (Show solutions) a. NONE O b. E(X) = 10 days, P(X=10) = 0.0483 O c. E(X) = 8 days, P(X=10) = 0.0483 O d. E(X) = 8 days, P(X=10) = 0.0387

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Target Inc. randomly draws 8 different gift vouchers to be given to selected loyal customers each day. For today, they draw the $5 gift voucher. What is the expected number of days until this gift voucher is again drawn? What is the probability that this gift voucher is drawn twice exactly 10 days from now? Let X denote a negative binomial random variable. (Show solutions) a. NONE O b. E(X) = 10 days, P(X=10) = 0.0483 O c. E(X) = 8 days, P(X=10) = 0.0483 O d. E(X) = 8 days, P(X=10) = 0.0387
Transcribed Image Text:Target Inc. randomly draws 8 different gift vouchers to be given to selected loyal customers each day. For today, they draw the $5 gift voucher. What is the expected number of days until this gift voucher is again drawn? What is the probability that this gift voucher is drawn twice exactly 10 days from now? Let X denote a negative binomial random variable. (Show solutions) a. NONE O b. E(X) = 10 days, P(X=10) = 0.0483 O c. E(X) = 8 days, P(X=10) = 0.0483 O d. E(X) = 8 days, P(X=10) = 0.0387
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