The Variables Height and Weight Could Reasonably Be Expected to Have

question 51

Essay

The variables height and weight could reasonably be expected to have a positive linear correlation coefficient, since taller people tend to be heavier, on average, than shorter people. Give an example of a pair of variables which you would expect to have a negative linear correlation coefficient and explain why. Then give an example of a pair of variables whose linear correlation coefficient is likely to be close to zero.

---

Definitions:

Nasal Discharge

Fluid ejected from the nose, which can vary in texture and color and may be a symptom of infection or allergy.

Common Cold

A viral infection of the upper respiratory tract characterized by symptoms like coughing, sneezing, and a runny nose.

Influenza

An extremely infectious virus that targets the respiratory system, leading to high fever, significant pain, and nasal congestion, frequently manifesting in widespread outbreaks.

Allergy

An allergy is a hypersensitive immune response to a substance that is normally harmless to most people, such as pollen, food, or pet dander.