Mathematics, 27.09.2019 03:00, hanz73

There are 80 sixth graders, 90 seventh graders, and 70 eighth graders at your school. every student gets entered in a raffle. what is the probability that a seventh-grade student will win the raffle?

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There are 80 sixth graders, 90 seventh graders, and 70 eighth graders at your school. every student...