1. The problem statement, all variables and given/known data A manufacturer has 100 customers and needs to make one component per customer. However 2% of the componants manufactured come out defective. The componants can be assumed to be independent. If the manufacturer stocks 100 components, what is the probability that the 100 orders can be filled without re-ordering new components? If the manufacturer stocks 102 components, what is the probability that the 100 orders can be filled without re-ordering new components? 2. Relevant equations Not sure, but possibly: (n!)/(x!(n-x)!)*(p^x)(1-p)^(n-x) p=probability of failure n=number of tries x=number of independent variable 3. The attempt at a solution The only real problem I'm having is with this equation, the first question goes to 1, and the second goes to zero. I feel those arn't right at all. Wouldn't the first question end up 98%? So I'm lost on if the binomial distribution function is even supposed to be used or if I just cant plug numers in a calc properly. Oh and this is my official first post on the forums.