Re: ISI 2012 ME - I Answer Key

Posted by rongmon on May 07, 2014; 6:52am
URL: http://discussion-forum.276.s1.nabble.com/ISI-2012-ME-I-Answer-Key-tp7515795p7588781.html

Q 24.

Begin by determining probability that none of the plugs pulled are faulty.

This is : (4 C 2)/ 6 C 2.

We get 6/15.

The probability that atleast one is faulty therefore is simply 1 - (none being faulty).

Thus, 1 - 6/15.

Ans. 9/15



Q 30.

I suspect its C as well, f(x) seems to increase for every value of x.