A study of data compiled from emergency departments reveals that the number of hospital visits for cooking-related knife injuries significantly increases around major holidays. What do the variables examined in the study show?
A) Manipulation
B) Causality
C) Covariance
D) Randomization

Question

Quizplus · Accepted Answer

The study shows covariance, as it identifies a relationship between two variables: the timing of major holidays and the increase in cooking-related knife injuries.

A Study of Data Compiled from Emergency Departments Reveals That