Possible Explanations of the Resulting Data - Our Opinions!
Females tend to weigh less than males, but they must be carrying the same amount of weight in their backpacks. - Jess L.
I saw that the female percentages are higher. Perhaps the males and females have the same backpack weight, but the males are heavier than the females, which makes the ratios higher for them. - Michael S.
Even though the upper school kids have even heavier backpacks than middle school kids, the middle school students don't weigh as much, making their backpack weight ratio higher. - Julia C.
I saw that fourth and fifth graders have more in their backpacks than other lower schoolers. Their bodies haven't grown that much yet, which makes the percentages higher. - Michael S.