Recent content by kiurys

I have my test in half an hour and that was the only question I didnt know how to do from the review. So let A be the number needed to pass, then: P(A) = 15_C_A * (0.5)^A * (0.5)^(15-A) = 15_C_A * (0.5)^15 = 0.000030518 * 15_C_A = 0.000030518 * [(15!)/(A!)(15-A)!] and since I want P(A) < 0.10...

Hello everyone, Just have a quick question on a binomial problem. The problem is as follows: A teacher is giving a 15 question true-false quiz. He wants to design the quiz such that a person that guesses on all the answers have less than a 0.10 probability of passing. What should the...