Re: DSE 2013 Doubts

Posted by Akshay Jain on May 30, 2014; 2:11pm
URL: http://discussion-forum.276.s1.nabble.com/DSE-2013-Doubts-tp7590991p7591099.html

On an avg the waiter doesnt get tip from two of his customers so it follows a poission distn with lambda=2
the prob that on any day he will not get tip from 3 of his customers is (e^-2)*2^3/3!
=(4/3)*e^-2