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In a class of 7, there are 4 students who play soccer.

If the teacher chooses 3 students, what is the probability that none of the three of them play soccer?

 Nov 23, 2018
 #1
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Then 3 do not play soccer

 

The total number of possible groups of three that could be chosen is C(7,3) = 35

 

But only one of tese includes all three who do not play

 

So...the probability is     1 / 35

 

 

cool cool cool

 Nov 23, 2018

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