Mathematics, 25.08.2020 07:01, sadsociety41

) Professor Jin wants to travel from place A to place B without a map. There are four ways lead away from place A. If road I is selected, the probability of arriving place B is 1/8; if road II is selected, the probability of arriving place B is 1/6; if road III is selected, the probability of arriving place B is 1/4; and if road IV is selected, the probability of arriving place B is 9/10. (a) What is the probability that professor will arrive at place B

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) Professor Jin wants to travel from place A to place B without a map. There are four ways lead away...