Because they ARE independent events, the formula for the probability that N mutations would occur is P1*P2*P3...PN.
Because they ARE independent events, the formula for the probability that N mutations would occur is P1*P2*P3...PN.Correct. My point was that it makes no difference whether the event is phenotypically neutral or not. I was under the impression you were making a point that because the are neutral, they are independent events.