A statistics class has 10 sophomores, 5 juniors, and 15 seniors. What is the probability that a

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A statistics class has 10 sophomores, 5 juniors, and 15 seniors. What is the probability that a student chosen at random form the class is not a sophomore?image

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McGraw Hills Conquering SAT Math

ISBN: 9780071493413

2nd Edition

Authors: Robert Postman, Ryan Postman

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