There are 40 people at a reception for international students. The students, boys and girls, are from Peru and China. 18 of all the students are boys, and 12 of all the students are Peruvian. 17 of the Chinese are girls. Given that a student is a boy, what is the probability that he is Chinese? A Venn diagram will help you to answer this question.

Question

amistre64 · Answer

40 students - 12 perus = 28 china

17 out of china are girls, whats the leave for the boys?

anonymous · Answer

|dw:1372796034748:dw|Just look at the first column which represents boys.  There are 18.  You can now determine the probability of Chinese by finding the number of Chinese boys.

anonymous · Answer

All good now, @TSpartanT  ?

anonymous · Answer

Thanks! You were both extremely helpful. That was really simple after you explained :3

anonymous · Answer

uw!  Good luck to you in all of your studies and thx for the recognition! @TSpartanT

dan815 · Answer

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