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QWhat is the mean weight of the entire class, given that section A has 36 students with an average weight of 40kg and section B has 44 students with an average weight of 35kg?

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  • A 33.5 ✔ ✖
  • B 37.5 ✔ ✖
  • C 34.5 ✔ ✖
  • D 37.25 ✔ ✖
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Explanation

To find the average weight of the entire class,
given that section A has 36 students with an average weight of 40kg and section B has 44 students with an average weight of 35kg,
we can first calculate the total weight of all 80 students.
This can be done by adding the total weight of the students in each section, as follows:
Total weight = (36 * 40kg) + (44 * 35kg) = 2980kg
The average weight of the entire class can then be calculated by dividing the total weight by the number of students, as follows:
Average weight = 2980kg / 80 students = 37.25kg

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