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the probability that a city bus is ready for service when needed is 77%. the probability that a city bus is ready for service and has a working radio is 65%. find the probability that a bus chosen at random has a working radio given that it is ready for service. round to the nearest tenth of a percent.

Answer 1

`(77)/(100) * (65)/(100) \\ = (5005)/(10000) \\ = 50.05\%`

Hope this helps. - M