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10 June, 22:20

Explain why this is or is not a probability distribution.

x

1

2

3

4

P (x)

0.2

0.1

0.4

0.2

+1
Answers (1)
  1. 11 June, 01:29
    0
    The sum of p (x) over all possible values of x is 1, that is

    ∑j pj = 1

    where j represents all possible values that x can have and pj is the probability at xj.

    yes it is probability distribution

    all sum is 0.9

    all probability between 0 and 1
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