The probability of event a is x, and the probability of event b is y. if the two events are independent, which of these conditions must be true?
a. p(b|a) = y
b. p(a|b) = y
c. p(b|a) = x
d. p(a and b) = x + y
e. p(a and b) = x/y
p(a)

The right answer for the question that is being asked and shown above is that: "d. P(A and B) = x + y." The probability of event A is x, and the probability of event B is y. If the two events are independent, the condition must be true is this d. P(A and B) = x + y