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Ln a class there are 20 boys and 10 girls in another class 25 boys and 20 girls when selecting astudent from each class . what is the probability of getting both girls? |
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Answer» Step-by-step EXPLANATION: In class , there are 10 girls of 30 students, so the probability of the student from class is 10/30 -> 1/3. In class , there are 20 girls of 45 students, so the probability of the student from class is 20/45 -> 4/9. To CALCULATE the probability of both students being girls, you MUST MULTIPLY the two, so 1/3×4/9=4/27=0.1481=14.81℅ probability |
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