Question

The complement of P(A) is
a. 1 - P(A)
b. 1 + P(A)
c. 1/P(A)
d. none of these​

Answer 1

Answer:

a) 1 - P(A)

Step-by-step explanation:

A mutually exclusive pair of events are complements to each other. For example: If the desired outcome is heads on a flipped coin, the complement is tails. The Complement Rule states that the sum of the probabilities of an event and its complement must equal 1, or for the event A, P(A) + P(A') = 1.

which gives

P(A') = 1 - P(A)