Question: Consider shift cipher with three possible messages, their distribution is Pr[M=hi] = 0.3, Pr[M=no] = 0.2, and Pr[M=in] = 0.5. What is Pr[M=hi | C=st]

Consider shift cipher with three possible messages, their distribution is Pr[M=hi] = 0.3, Pr[M=no] = 0.2, and Pr[M=in] = 0.5. What is Pr[M=hi | C=st] ?

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