Traditional Culture Encyclopedia - Hotel franchise - During the World Expo, in order to attract customers, a high-end hotel built a turntable that can rotate freely, as shown in the figure, and stipulated that customers spend 100 yuan.
During the World Expo, in order to attract customers, a high-end hotel built a turntable that can rotate freely, as shown in the figure, and stipulated that customers spend 100 yuan.
Solution: If customer A spends 150 yuan more than 100 yuan, he can get the corresponding discount, which is obtained according to the probability formula.
P (10% discount) = =;
P (50%，70%，20%) =。
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