The Relationship between Two Quantitative Variables — Quiz
Question 6 • Statistical Reasoning
During a particularly dry growing season in a southern state, farmers noticed that there is a delicate balance between the number of seeds that are planted per square foot and the yield of the crop in pounds per square foot. The yields were the smallest when the number of seeds per square foot was either very small or very large. What is the explanatory variable for this relationship?
Answer
A
precipitation for the growing season
B
number of seeds planted per square foot
C
location of the farm
D
yield of the crop
Explanation
The explanatory variable is the factor used to explain or predict changes in another variable. Here, the crop yield changes depending on the number of seeds planted per square foot, so the number of seeds planted is the explanatory variable. Yield is the response variable.
AI-written and checked against the verified answer.