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प्रश्न
Explain the terms probability distribution function
उत्तर
The probability distribution of a random variable X is defined only when we have the various values of the random variable e.g. x1, x2 …… xn together with respective probabilities p1, p2, p3 …… p4 satisfying
`sum_("i" = 1)^"n" "PI"` =1
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