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How to determine if girls are heavier than boys on average given class size, average weight, and number/average weight of boys?
Mathematics
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a) To determine if girls are heavier than boys on average, we need to calculate the average weight of the girls.
Step 1: Calculate the total weight of all students in the class.
There are 100 students with an average weight of 60 kg.
Step 2: Calculate the total weight of the boys.
There are 50 boys with an average weight of 70 kg.
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