A study seeks to answer the question, "does vitamin c level in the breast milk of new mothers reduce the risk of allergies in th
eir 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.
The question is what type of variable is this scenario?
A. Categorical
<span>B. Quantitative</span>
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.
<span>In our scenario, we use quantitative variables (Vit C in milligrams) and risk of allergies (30%). </span>
The result would be an increased atmospheric concentration, which alters the distribution or abundance of species. Leached phosphorus can then lead to algal blooms and that clogs the aquatic ecosystem.