Mean Calculation Homework Help

Mean Calculation Homework Help

 
The mean weight for team A with 15 members is 140 lbs., the mean weight for team B with 7 members is 135 lbs., and the mean weight for team C with 20 members is 160 lbs. The overall mean weight for all three teams is ____.a) 178.43   b) 148.69   c)138.78     d)145.00



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