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Five groups of rats are fed identical diets except for the amount of vitamin A that they receive. Each group gets a different amount. After three weeks on the diet, the rats are weighed to see if the amount of vitamin A received has affected their weight.

Independent Variable: {diet?}
Dependent Variable: {weight?}
Hypothesis: {If the diet of the rats are changed then the weight will decrease because the rat is not eating properly?}

  • Science -

    weight = f ( vitamin A)


    weight is dependent on vit A

    hypothesis
    the weight of the rats depends on how much vitamin A they get in their diet.

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