There is a group of 20 persons who are rich, out of these 5 are helpful to poor people - Maths - Probability

Question

There is a group of 20 persons who are rich, out of these 5 are
helpful to poor people Three persons are selected at random, write
the probability distribution for the selected persons who are
helpful to poor people Also find the mean of the distribution

Mayur Pisode · Accepted Answer

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There is a group of 20 persons who are rich, out of these 5 are helpful to poor people. Three persons are selected at random, write the probability distribution for the selected persons who are helpful to poor people. Also find the mean of the distribution.