Probability Distrubution

Question

From a lot containing 25 items , 5 are defective and 4 are chosen at random . Let X be the numbers of defective found .Obtain the probability distribution of X if item are choosen without replacement ?

Comments

yes @Dexter @Manojk both of ur ans corrct .

But is there any incorrect in my logic if I replace 5C0* 20C4/ 25C4

to 20/25⨉19/24 ⨉18/23⨉17/22

similarly others too

Even another thing 5C0* 20C4/ 25C4 and 20/25⨉19/24 ⨉18/23⨉17/22 not give same result too. right?

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@Srestha First read the qus carefully

X be the numbers of defective found .Obtain the probability distribution of X if item are choosen without replacement.

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@shrestha even you are right :) I have written in general way that all .

Whenver we have without replacement your sample space goes on decreasing one by one each :)