Posted by stephen on .
Henry will reject a cookie with less than 8 raisins.In the past, one out of every 100 cookies had less than 8 raisins. Find theprobability that the first cookie Henry rejects is the 5th cookie on the line.

math 121 
Steve,
the chance that the first 4 cookies are not rejected is .99^4 = .96060
then the chance that the 5th cookie is rejected is .01, so, the final
p = .99^4 * .01 == .0096