Question

Suppose the probability of event A is P(A) = 7/10. What is the probability of event Anot happening P(A')? (You can give your answer as a fraction, decimal or percent)P(A') = ?

Answer 1

Given the probability of event A happening is P(A) = 7/10

the probability of event A not happening P(A') = 1 - 7/10 = 3/10

The answer is 3/10