This corrects typos in problem 4, where “conditional probabilities” should be “conditional entropies”, and problem 5 item (b), in which there should be set braces around the formula to the right of the equal sign.
if (x = 1) and (y = 1) then z := 1where x and y can each be 0 or 1, with both equally likely and z is initially 0. Compute the conditional entropies H(x  z′) and H(y  z′).

ECS 235B, Foundations of Computer and Information Security Version of February 23, 2021 at 12:21AM

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