Asked by Bobbie

Four balls are selected at random without replacement from an urn containing four white balls and five blue balls. Find the probability of the given event.


All of the balls are blue.

Answers

Answered by Damon
4 w and 5 b so 9

first one
5/9
second
4/8
third
3/7
fourth
2/6
so
5/9 * 1/2 * 3/7 * 1/3
(5)/(7*18) = 5/126
Answered by Blessing
Right
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