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Two different integers are randomly chosen from the set \(\{ -5, -8, 7, 4, -2 \}.\) What is the probability that their product is negative? Express your answer as a common fraction.

Mr.Owl  Nov 11, 2017
 #1
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Number of possible sets  is  C(5,2)  = 10

 

A negative will occur when  any 3 of the negatives are multiplied by  each of the two positives

 

So......this will produce   3* 2  =  6 sets

 

So...the probability  is  6 / 10   =  3 / 5

 

cool cool cool

CPhill  Nov 11, 2017

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