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Mathematics, 07.12.2019 03:31 alexseyreyes
At a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump premium gas. of those who pump regular, 30% pay at least $30. of those who pump midgrade, 50% pay at least $30. and of those who pump premium, 60% pay at least $30. (a) what is the probability that the next customer pumps premium gas and pays at least $30? (b) what is the probability that the next customer pays at least $30? (c) what fraction of customers who pay at least $30 pump premium gas?
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At a self-service gas station, 40% of customers pump regular gas, 35% pump midgrade, and 25% pump pr...
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