Binary Digit. Any value entered in the computer is converted first to it binary equivalent. The four possible equally likely outcomes for a two binary digit are 00, 01, 10, 11. Let A = event the first digit is 1, B = event the second digit is 1, and C = event at least one digit is 1.

Determine the following probabilities and express your results in words. Compute the conditional probabilities directly; do not use the conditional probability rule.

a. P(B)

b. P(B | A)

c. P(C | (not B))

d. P(C | A)