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The probability that a car being filled with petrol will also need an oil change is 0.30, the probability that it needs a new oil filter is 0.40, and the probability that both the oil and filter need changing is 0.15.(i)If the oil had to be changed, what is the probability that a new oil filter is needed?(ii)If a new oil filter is needed, what is the probability that the oil has to be changed? |
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Answer» (II)`0.375` |
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