Each of the following tables lists certain values of X and their probabilities. Determine whether or not each table represents a valid probability distribution. a. P(X) 0.08 1 0.11 2 0.39 0.27 b. P(X) 0.25 2 3 0.34 4 0.28 0.13 C. P(X) 0.70 7 8 0.50 -0.20

A First Course in Probability (10th Edition)
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Chapter1: Combinatorial Analysis
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Each of the following tables lists certain values of X and their probabilities. Determine whether or not
each table represents a valid probability distribution.
a.
P(X)
0.08
1
0.11
2
0.39
0.27
b.
P(X)
0.25
X
2
0.34
0.28
0.13
C.
P(X)
0.70
X
7
8
0.50
-0.20
345
Transcribed Image Text:Each of the following tables lists certain values of X and their probabilities. Determine whether or not each table represents a valid probability distribution. a. P(X) 0.08 1 0.11 2 0.39 0.27 b. P(X) 0.25 X 2 0.34 0.28 0.13 C. P(X) 0.70 X 7 8 0.50 -0.20 345
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