Thu February 21, 2013 By: Anjaly

three balls are drawn one by one without replacement from a bag containing 5 white and 4 green balls.find the probability distribution of number of green balls drawn.

Expert Reply
Fri February 22, 2013
You will have to find the probability of drawing 0, 1 , 2 or all 3 green balls from the bag. And since, here we are talking of discrete number of events, this probability will correspond to the probability distribution P(X) where X is the number of green balls drawn without replacement from the bag. 
I guess now you can solve it, since you main concern was whether we need to find the probability distribution or probability. Still for your help, this is how the answer will be calculated - 
And now, all these P(X)'s so calculated constitute the probability distribution function.
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