Question: A warning light is supposed to flash red in case engine oil pressure is low. The probability that the light is flashing given that the
A warning light is supposed to flash red in case engine oil pressure is low. The probability that the light is flashing given that the oil pressure is low is 0.99. Sometimes the light flashes when the oil pressure is not low and this occurs with probability 0.02. Suppose there is a 10% chance that the oil pressure really is low. What is the probability that the oil pressure is low if the light comes on?
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