whats the probability ill get a defective part?There are 12 conveyers containing parts, there are 2 conveyers of defective parts, if i pick 3 parts random...
The odds of picking a defective part if you pick 1 part is...
2 / 12 = 1/6
If you pick 3 parts randomly, you are picking 1 part 3 times...
1/6 + 1/6 + 1/6 = 3/6 or 1/2
So your probability is 1/2 or 50%.
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