Re: DSE-2009

Posted by nidhi on Jun 06, 2010; 12:56pm
URL: http://discussion-forum.276.s1.nabble.com/DSE-2009-tp5138086p5145355.html

How to solve this question

17. Jai and Vijay are taking a exam in statistics. The exam has only three grades A,
B and C. The probability that Jai gets a B is 0.3, the probability that Vijay gets a B is
0.4, the probability that neither gets an A, but at least one gets a B is 0.1. What is the
probability that neither gets a C but at least one gets a B?
                a)  0.1
                b)  0.6
                c)  0.8
                d)  Insufficient data to answer the question