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For a Random Sample of 30 Countries, the Linear Correlation

question 14

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For a random sample of 30 countries, the linear correlation coefficient between the infant mortality rate and theaverage number of cars per capita was found to be r = -0.717. What does this imply? Does this suggest that ifpeople buy more cars, this could lower the infant mortality rate? Why or why not? What is a likely lurkingvariable?


Definitions:

Histamine

A nitrogenous compound involved in local immune responses, regulating physiological function in the gut, and acting as a neurotransmitter for the brain, spinal cord, and uterus.

Protease

An enzyme that breaks down proteins into smaller peptides or amino acids.

Sublingual Nitroglycerine

A medication administered under the tongue to quickly relieve chest pain associated with angina by dilating blood vessels.

Vasodilator

A type of medication or substance that causes blood vessels to expand, increasing blood flow.

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