In a second grade class containing 13 girls and 10 boys, 2 students are selected at random to give out the math papers. What is the probability that the second student chosen is a boy, given that the first one was a girl? 13/23 * 13/22 5/11 13/23 * 5/11 10/23
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So now there are 12 girls and 10 boys left in the class, making a total of 22 students. Show more…
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