Tuesday
July 22, 2014

Homework Help: IGNOU probability

Posted by Dharmenra on Friday, October 15, 2010 at 6:10am.

Among the examinees in an examination 30%, 35% and 45% failed in Statistics, in Mathematics, and in at least one of the subjects respectively. An examinee is selected at random. Find the probabilities that
a. He failed in Mathematics only
b. He passed in Statistics, if it is known that he has failed in Mathematics

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