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 Form 3 Probability Video Questions and Answers

The water supply in a town depends entirely on two water pumps A and B. The probability of pump A failing is 0.1 and the probability of pump B failing is 0.2. Calculate the probability that
(a)both pump are working
(b)there are no water in the town
(c)only one pump is working
(d)there is some water in the town.

 (4m 24s)
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