SOLUTION: a lot of 10 calculators contains two defective calculators. two are picked at randon from the lot. what is the probability that at least one is defective?

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Question 251023: a lot of 10 calculators contains two defective calculators. two are picked at randon from the lot. what is the probability that at least one is defective?
Answer by JimboP1977(311) About Me  (Show Source):
You can put this solution on YOUR website!
1 in 5 chance.