Suppose that you have randomly picked up TWO students. In a class, there are 1 freshman, 7 sophomore, and 5 junior students. There are 8 female students and 5 male students. There is no male freshman. There are four female sophomores.  What is the probability that none of them is sophomore?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Suppose that you have randomly picked up TWO students.

In a class, there are 1 freshman, 7 sophomore, and 5 junior students. There are 8 female students and 5 male students. There is no male freshman. There are four female sophomores. 

What is the probability that none of them is sophomore?

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