A baking company wants to know if adding sugar to their bread recipe
will cause mold to form and grow on the bread faster. To find out, they add
sugar to batch A and use the original recipe for batch B. Mold formed on
batch A 9 days after baking and on batch B 12 days after baking. They
decide to NOT add sugar to the original bread recipe. What is the
dependent (responding) variable in this experiment? *