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Mathematics, 11.02.2020 17:30 PaMuth1100

A certain delivery service offers both express and standard delivery. 75% of parcels are sent by standard delivery, and 25% are sent by express. Of those sent standard, 80% arrive the next day, and of those sent express, 95% arrive the next day. A record of parcel delivery is chosen at random from the company's files. What is the probability that the parcel was shipped expressed and arrived the next day?

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