Final answer:
In a binomial experiment with p(s) = 0.36, the probability of failure p(f) is 1 - 0.36, which equals 0.64.
Step-by-step explanation:
In a binomial experiment, if the probability of success (p(s)) is 0.36, then the probability of failure (p(f)) can be found by subtracting this from 1, since the sum of the probabilities for all possible outcomes must equal 1. Therefore, p(f) equals 1 - p(s), which in this case is 1 - 0.36, equaling 0.64.
This means the correct answer is d. 0.64.