Asked by Jake
There are 30 students in the class. 16 of them study french and 21 study spanish. They all study at least one of the two languages. What is the probability that a student chosen at random studies french only?
Answers
Answered by
oobleck
If x study both, then
16+21-x = 30
x = 7
so, 16-7 = 9 study French only
now finish it off
16+21-x = 30
x = 7
so, 16-7 = 9 study French only
now finish it off
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