Question 648024
Yaah....i also thought that answer should be this way. But we got the question in test and prof has given the correct answer as .798. Also searched it on Google, this question is from "probability through problems" book...and not getting its soft or hard copy to check the answer....and prof has not explained it yet but so eager to know how it could be .798....
well, its Ok..if you also think that it should be .726.