QUESTION 6 Two discrete independent random variables X and Y can take values 0 and 1 only. Fill in the joint probability distribution table below, knowing the distributions of X and Y given as marginal distribution over the last row (for X) and last column (for Y). X=0 X-1 P(Y=y) Y=0 0.1 0.3 Y=1 0.2 0.4 P(X=x) (a) Calculate the marginal distributions of X and Y. (fill in your answer as a number 0.x) (b) What is the probability P(X+Y = 1) = ? (fill in your answer as a number 0.x) (c) Are the variables X and Y independent? Input your answer as Y or N here:

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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QUESTION 6
Two discrete independent random variables X and Y can take values 0 and 1 only. Fill in the joint probability distribution table below, knowing the distributions of X and Y given as marginal
distribution over the last row (for X) and last column (for Y).
X=0
X=1
P(Y=y)
Y=0 0.1
0.3
Y=1 0.2
0.4
P(X=x)
(a) Calculate the marginal distributions of X and Y. (fill in your answer as a number 0.x)
(b) What is the probability P(X+Y = 1) =
? (fill in your answer as a number 0.x)
(c) Are the variables X and Y independent? Input your answer as Y or N here:
Transcribed Image Text:QUESTION 6 Two discrete independent random variables X and Y can take values 0 and 1 only. Fill in the joint probability distribution table below, knowing the distributions of X and Y given as marginal distribution over the last row (for X) and last column (for Y). X=0 X=1 P(Y=y) Y=0 0.1 0.3 Y=1 0.2 0.4 P(X=x) (a) Calculate the marginal distributions of X and Y. (fill in your answer as a number 0.x) (b) What is the probability P(X+Y = 1) = ? (fill in your answer as a number 0.x) (c) Are the variables X and Y independent? Input your answer as Y or N here:
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