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A math exam is given to 500 students. Among 500 students, 300 are middle-school students and 200 are high-school student

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A math exam is given to 500 students. Among 500 students, 300 are middle-school students and 200 are high-school student

Posted: Wed May 11, 2022 8:34 am
by answerhappygod
A Math Exam Is Given To 500 Students Among 500 Students 300 Are Middle School Students And 200 Are High School Student 1
A Math Exam Is Given To 500 Students Among 500 Students 300 Are Middle School Students And 200 Are High School Student 1 (55.41 KiB) Viewed 20 times
A math exam is given to 500 students. Among 500 students, 300 are middle-school students and 200 are high-school students. The mean exam score for the middle-school students is 70 and the mean test score for the high-school students is 80. What is the mean of all students?
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