29-03-2017
Mathematics

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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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Cheechee1099 Cheechee1099

29-03-2017

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%.

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