In a city with three high schools, all the ninth graders took a Standardized Test, with these results: High School Mean score on test Number of ninth graders Glenwood 83 277 90 Central City Lincoln High The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 80.7. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. 346 69 152 mean of all ninth grader's scores =

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Q: n a city with three high schools, all the ninth graders took a Standardized Test, with these…

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Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

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Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

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Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

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