Raymond B. answered • 06/03/21
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Math, microeconomics or criminal justice
8(1.2) + 5(2.9) = 9.6 + 14.5 = 24.1 kg
divide by 13, not 4.1 to get 24.1/13 = about 1.85 kilograms mean weight
It's the same weighted average formula and method colleges use to calculate your GPA
IF you received 8 B's and 5 C's, B=3.0 C=2.0
your GPA is (8(3)+5(2))/13 = 34/13 = 2.62
if you divided by 3+2, you'd get 34/5 = 6.8 which is impossible since A=4.0 is the largest GPA possible.
Mark M.
tutor
The mean weight would be measured in terms of kg per fish ("per" in this context means: divide). so we have kg/fish (the denominator is the number of fish)
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06/03/21
Gary H.
where does it mention "per," I still don't quite understand the reason to divide the total number of fish.
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06/03/21
Gary H.
i'm sorry, but I want to know the reason why though, the formula states, (sum of(category value x category weight)) divided by sum of category weights. the weight of the fish? Why the total fish.06/03/21