Here's the question:
You are buying plastic sheets from one of your suppliers. Common problems with these sheets include warpage and chipped corners.
With probability 0.01, a sheet is both warped and also has chipped corners.
With probability 0.03, a sheet is warped, but with no chipped corners.
With probability 0.02, a sheet has chipped corners, but is not warped.
And, of course, with probability 0.94, a sheet is neither warped nor has a chipped corner.
You have just received a shipment of 1000 sheets.
a.) Produce a formula for the probability that exactly 500 of the sheets are neither warped nor have chipped corners.
(There are more parts to this question, I just put this one down to start)
First off, please do not tell me the answer.
Second, would I use the Poisson distribution for this? If so it should look something like this:
940500 e-940 / 500!
Is this right? or did I do something wrong? Because the number I'm getting is 0, and that can't be.
Or do I use the Gaussian (normal) distribution? What would that equation look like?