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A study seeks to answer the question, "does vitamin c level in the breast milk of new mothers reduce the risk of allergies in their breastfed infants?" the study concluded that high levels of vitamin c (measured in milligrams) were associated with a 30 percent lower risk of allergies in the infants.

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Answer: B.  Quantitative

The question is what type of variable is this scenario?

A. Categorical

B.  Quantitative

There are two types of variables used in statistics: Quantitative and categorical ( or qualitative). Quantitative variables are variables that can be counted in counts or numbers or can be measured in percentage. Categorical variables are descriptions of groups or things.

In our scenario, we use quantitative variables (Vit C in milligrams) and risk of allergies (30%).  

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