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OpenStudy (anonymous):
A science class has 12 boys and 15 girls. What is the probability that a student chosen at random is a boy?
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jimthompson5910 (jim_thompson5910):
P(Boy) = Probability of selecting a boy
jimthompson5910 (jim_thompson5910):
P(Boy) = (# of boys)/(# of students total)
jimthompson5910 (jim_thompson5910):
be sure to reduce the fraction as much as possible
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