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Mathematics, 15.05.2021 22:50 shealwaysknows23

Can somebody help real quickly? I'm stuck. I originally got 4085.2 as my answer but it marked it as wrong. Thank you so much, in advance! C: In a psychology class, 57 students have a mean score of 85.7 on a test. Then 18 more students take the test and their mean score is 74.6.

What is the mean score of all of these students together? Round to one decimal place.

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Can somebody help real quickly? I'm stuck. I originally got 4085.2 as my answer but it marked it as...

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