A school contains students in grades 1, 2, 3, 4, 5, and 6. Grades 2, 3, 4,

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A school contains students in grades 1, 2, 3, 4, 5, and 6. Grades 2, 3, 4, 5, and 6 all contain the same number of students, but there are twice these numbers in grade 1. If a student is selected at random from a list of all the students in the school, what is the probability that she will be in grade 3?
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Probability And Statistics

ISBN: 9780321500465

4th Edition

Authors: Morris H. DeGroot, Mark J. Schervish

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