SOLUTION: A package of 15 apples contains two defective apples. Four apples are selected at random. (a) Find the probability that none of the selected apples are defective. (b) Find the prob
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Question 341287: A package of 15 apples contains two defective apples. Four apples are selected at random. (a) Find the probability that none of the selected apples are defective. (b) Find the probability that at least one of the selected apples is defective. Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! Combination of n things taken r at a time: nCr
a) combinations of healthy apples/all combinations
=13C4/15C4
=715/1365
=.5238
.
b) 1-.5238=.4762
.
Ed
