Mathematics, 21.09.2020 23:01 dhananjaynagarkar
On a certain exam, Tony corrected 10 papers and found the mean for his group to be 50. Alice corrected the remaining 20 papers and found that the mean for her group was 70. What is the mean of the combined group of 30 students? (Round to the nearest tenth as needed.)
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On a certain exam, Tony corrected 10 papers and found the mean for his group to be 50. Alice correct...
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