Mathematics, 11.06.2020 16:02, monkeyrose1999

At a gas station, 50% of the customers use regular gas, 30% use mid-grade gas and 20% use premium gas. Of those customers using regular gas, only 30% fill their tanks. Of those customers using mid-grade gas, 60% fill their tanks, whereas of those using premium, 50% fill their tanks. If the next customer fills the tank, what is the probability that he uses premium gas

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At a gas station, 50% of the customers use regular gas, 30% use mid-grade gas and 20% use premium ga...