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randomly selecting a seventh grader from a school that has 250 sixth graders,225 seventh graders, and 275 eighth graders
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randomly selecting a seventh grader from a school that has 250 sixth graders,225 seventh graders, and 275 eighth graders

User Xiongbing Jin
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1 Answer

4 votes
30% chance because the sum of all of the students is 750 and if you divide 225 by 750 you get 0.3, or 30%.
User Nonie
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