Environment Studies (Science) (M.Phil./Ph.D.) 2022 Panjab University Entrance Exam With Answers

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13.

Out of the following values, which one is not possible in probability?

A: P(x)=1
B: ∑xP(x)=3
C: P(x) = 0.5
D: P(x) = – 0.5

The answer is: D

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