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OpenStudy (anonymous):
I have a stats question: " A professor teaches two stats classes. The morning class has 25 students and their average on the first test was 82. The evening class has 15 students and their average was 74. What is the average on the is test if the professor combines the scores for both classes?" I just don't understand how to solve this. Do I add the scores and divide by the number of students?
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