(c) Consider a packet of jellybeans that contains 9 jellybeans, of which 4 are lemon and the remaining 5 are raspberry. You reach in and pull out 3 jellybeans. What is the probability that they are all lemon? What is the probability that they are all raspberry?

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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(b) Let A₁, A2, A3 be events that are conditionally independent given B. Additionally, assume
that A₁, A2, A3 are conditionally independent given Bc. Assume that P[A;|B] = 1/4 and
P[A₁|BC] = 1/2 for i = 1, 2, 3 and P[B] = 1/3. Calculate P[A₁ÑA¦ÑA3|B] and P[A₁ÑæÑA3].
(c) Consider a packet of jellybeans that contains 9 jellybeans, of which 4 are lemon and the
remaining 5 are raspberry. You reach in and pull out 3 jellybeans. What is the probability
that they are all lemon? What is the probability that they are all raspberry?
Transcribed Image Text:(b) Let A₁, A2, A3 be events that are conditionally independent given B. Additionally, assume that A₁, A2, A3 are conditionally independent given Bc. Assume that P[A;|B] = 1/4 and P[A₁|BC] = 1/2 for i = 1, 2, 3 and P[B] = 1/3. Calculate P[A₁ÑA¦ÑA3|B] and P[A₁ÑæÑA3]. (c) Consider a packet of jellybeans that contains 9 jellybeans, of which 4 are lemon and the remaining 5 are raspberry. You reach in and pull out 3 jellybeans. What is the probability that they are all lemon? What is the probability that they are all raspberry?
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