Which of the following is/are required for the probability distribution of a discrete random variable X...

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Question

Which of the following is/are required for the probability distribution of a discrete random variable X with probabilities P(

Answer 1

Answer #1

For P(X =x ) to be valid

1. P(X=x ) is between 0 and 1 for all values of x

2. P(X )1 allr

Both are valid

answer is

I and II only

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Answer 2

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