Mathematics, 12.02.2020 05:28 jhony42

A dashboard warning light is supposed to flash red if a car’s oil pressure is too low. On a certain model, the probability of the light flashing when it should is 0.99; 2% of the time, though, it flashes for no apparent reason. If there is a 10% chance that the oil pressure really is low, what is the probability that a driver needs to be concerned if the warning light goes on? When the warning light goes on, what is the probability that the oil pressure is low?

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A dashboard warning light is supposed to flash red if a car’s oil pressure is too low. On a certain...