Random variability exists because
A) relationships between variables can only be positive or negative.
B) curvilinear relationships exist.
C) relationships between variables are rarely perfect.
D) relationships between variables can only be monotonic.

Question

Quizplus · Accepted Answer

Random variability exists because relationships between variables are rarely perfect. Even in cases where there is a strong positive or negative relationship between two variables, there will still be some variability in the data points. This is due to factors such as measurement error, natural variation in the data, and individual differences among the subjects being studied. Therefore, random variability is an inherent part of any dataset, and researchers must take this into account when trying to draw conclusions from their results.

Random Variability Exists Because