Mathematics, 21.04.2020 22:20 QueensQueens

In a certain class of students, there are 8 boys from Wilmette, 4 girls from Winnetka, 10 girls from Wilmette, 5 boys from Glencoe, 3 boys from Winnetka and 7 girls from Glencoe. If the teacher calls upon a student to answer a question, what is the probability that the student will be a boy?

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In a certain class of students, there are 8 boys from Wilmette, 4 girls from Winnetka, 10 girls from...