Each main bearing cap in an engine contains four bolts.
Chapter 3, Problem 3-170(choose chapter or problem)
Each main bearing cap in an engine contains four bolts. The bolts are selected at random, without replacement, from a parts bin that contains 30 bolts from one supplier and 70 bolts from another. (a) What is the probability that a main bearing cap contains all bolts from the same supplier? (b) What is the probability that exactly three bolts are from the same supplier?
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