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David, Ken, and Sumit each throw a rock at a target. David misses with probability 0.3, Ken misses with probability 0.2

Posted: Tue Apr 26, 2022 5:50 pm
by answerhappygod
David, Ken, and Sumit each throw a rock at a target. David
misses with probability 0.3, Ken misses with probability 0.2 and
Sumit misses with probability 0.1. The probability that at least
one rock hits the brad's house is?