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Probability

A random vari...

Question

A random variable $X$ has the following probability distribution, then $C =$
$X = x : 1, 2, 3, 4$ , $P (X = x) : C, 2 C, 3 C, 4 C$

0.1

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0.2

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10

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20

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Solution

The correct option is A $0.1$
$4 \sum 1 P (X = x) = 1$
$C (2 + 4 + 3 + 1) = 1$
$C = 0.1$

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