ProbabilityHard

Question

An experiment results in four possible out comes S1, S2, S3 & S4 with probabilities p1, p2, p3 & p4 respectively. Which one of the following probability assignment is possbile.
[Assume S1 S2 S3 S4 are pair wise exclusive]

Options

A.p1 = 0.25, p2 = 0.35, p3 = 0.10, p4 = 0.05
B.p1 = 0.40, p2 = - 0.20, p3 = 0.60, p4 = 0.20
C.p1 = 0.30, p2 = 0.60, p3 = 0.10, p4 = 0.10
D.p1 = 0.20, p2 = 0.30, p3 = 0.40, p4 = 0.10

Solution

p1 + p2 + p3 + p4 = 1 in     in D obvious solution follows

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