A box contains 10 items in which 3 are defective. If 4 are selected at random, without replacement, what is the probability that at least 2 are defective? What is the probabilitythat at most 2 are defectives
Added by Leslie M.
Step 1
To do this, we need to calculate the probability of selecting 2 defective items and 2 non-defective items. The probability of selecting 2 defective items out of 3 defective items is (3 choose 2) / (10 choose 4) = (3C2) / (10C4) = 3/210 = 1/70. The probability Show more…
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