Question

The sample space of a probability experiment is s=a, b, c, d. Given that p(a)=p(b)=p(d)=0.2, what is the probability of event c?

Answer 1

The probability of event c is 0.4, or 40%.

Step-by-step explanation:

The probability of event c can be found by subtracting the sum of the probabilities of events a, b, and d from 1, because the sample space represents all possible outcomes and the total probability must equal 1. In this case, p(a) = p(b) = p(d) = 0.2, so the probability of event c is 1 - (0.2 + 0.2 + 0.2) = 1 - 0.6 = 0.4, or 40%.