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anonymous
 one year ago
A teacher gave her class two exams; 60% of the class passed the second exam, but only 48% of the class passed both exams. What percent of those who passed the second exam also passed the first exam?
anonymous
 one year ago
A teacher gave her class two exams; 60% of the class passed the second exam, but only 48% of the class passed both exams. What percent of those who passed the second exam also passed the first exam?

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mathmate
 one year ago
Best ResponseYou've already chosen the best response.1correct! P(B)=0.60 P(A\(\cap\)B)=0.48 P(AB)=P(A\(\cap\)B)/P(B)=0.48/0.60=0.80=80%
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