Question

I need help, here is an example about what I am working on. A spinner has 3 sections on it labeled A, B, and C it is spun twice. Find the probability P(at least one A)

Answer 1

Given that you spin the spinner twice, the 9 possible outcomes are:

AA, AB, AC, BA, BB, BC, CA, CB, and CC

5 of them have at least one A. Then,

P(at least one A) = 5/9