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After giving a test to a group of students, below are the summary of grades and gender. Write as a reduced fraction. A B Total

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After giving a test to a group of students, below are the summary of grades and gender. Write as a reduced fraction. A B Total Male 4 15 2 21 Female 20 17 11 48 Total 24 32 13 69 If a student is randomly chosen, find the probability that the student did not earn an "B"

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