Question: A factory produces 1000 items, of which 950 are good and 50 are defective. If one item is chosen at random, what is the probability that it is defective?
(A) 1/2
(B) 1/25
(C) 1/30
(D) 1/40
Solution:
Total items = 1000.
Number of defective items = 50.
Thus, the probability of choosing a defective item:
P(defective) = 50⁄1000 = 1⁄20
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