Question

If the probability of an event occurring is 1/4, what is the probability of its complement?

Answer 1

if P(A) = k

then the probability of notA (its complement) is: 1 - k

Answer 2

so it would be -1/4?

Answer 3

well, they gave you; P(A) = 1/4

so the compliment is: 1 - 1/4