Suppose that the random variables X,Y and Z have the following joint probability listribution. * y z f(x,y, z) 1 1 1 1 1 2 1 2 1 1 2 2 2 1 1 2 1 2 2 2 1 0.05 0.10 0.15 0.20 0.20 0.15 0.10 2 2 2 0.05 Determine the following

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 29E
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Suppose that the random variables X,Y and Z have the following joint probability
distribution.
z f(r, y, z)
1 1 1
1 1 2
1 2 1
1 2 2
2 1 1
2 1 2
0.05
0.10
0.15
0.20
0.20
0.15
2 2 1
0.10
2 2 2
0.05
Determine the following
(a) P(Z < 1.5)
(b) P(X = 1, Y = 1|Z = 2)
(c) P(X = 1 or Z = 2)
(d) Conditional probability distribution of X given that Y = 1 and Z = 2.
Transcribed Image Text:Suppose that the random variables X,Y and Z have the following joint probability distribution. z f(r, y, z) 1 1 1 1 1 2 1 2 1 1 2 2 2 1 1 2 1 2 0.05 0.10 0.15 0.20 0.20 0.15 2 2 1 0.10 2 2 2 0.05 Determine the following (a) P(Z < 1.5) (b) P(X = 1, Y = 1|Z = 2) (c) P(X = 1 or Z = 2) (d) Conditional probability distribution of X given that Y = 1 and Z = 2.
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