Question: Binary digits, that is, 0s and 1s, are sent down a noisy communications channel. They are received as sent with probability 0.9 but errors occur

Binary digits, that is, 0’s and 1’s, are sent down a noisy communications channel. They are received as sent with probability 0.9 but errors occur with probability 0.1.Assuming that 0’s and 1’s are equally likely,what is the probability that a 1 was sent given that we received a 1?

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