Defective Blackberries, Ripe Tomatoes
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1.Suppose that in an assortment of 20 blackberries, there are 5 with defective switches. In a draw without replacement, if 3 blackberries are picked at random, what is the probability that all 3 have defective switches?
2.A tray of 20 tomatoes has a 12.5% probability of being too ripe. What is the probability that exactly 3 tomatoes will be ripe?
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Solution Summary
The expert provides the calculation of the probabilities of defective blackberries and ripe tomatoes.
Solution Preview
1. To select 3 blackberries out of 20, there are C(20, 3) = 20!/(3! * 17!) = 1140 ways. There ...
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