Re: DSE PROBABILITY QUESTIONS

Posted by sasdthds on May 19, 2015; 6:06pm
URL: http://discussion-forum.276.s1.nabble.com/DSE-PROBABILITY-QUESTIONS-tp7597075p7597078.html

for the first ques take the negative approach,
club the two women together as one and then 4 men
total person=5
no. of arrg then =4!2!
without cases=5!
ans=1-4!2!/5!
q.2 is based on binomial coeffient propeties