Question

A large office has three Xerox machines M,,M, and M . The probability that on a given day
M, works is 0.60
M, works is 0.75
M, works is 0.80
both M, and M, work is 0.50
both M, and M, work is 0.40
both M, and M, work is 0.70
all of them work is 0.25.
Find the probability that on a given day at least one of the three machines works.​

Answer 1

Answer:

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