Chapter 4.2, Problem 4.43E

To determine

To find out the lurking variables that might explain the association between taking several math courses in high school and success in college and explain why requiring algebra and geometry may have little effect on who succeeds in college.

Explanation of Solution

A lurking variable is a variable that has an important effect on the relationship among the variables in a study but is not one of the explanatory variables studied.

Some examples of lurking variables are then intelligence and amount of hours studied per day.

Algebra and geometry has little effect on who succeeds in college because intelligence and study habits are a lot more important.