For a Random Sample of 30 Countries, the Linear Correlation

question 14

Essay

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?

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Definitions:

Enzyme

Bio-originated molecules that markedly expedite the rate of virtually every chemical activity taking place within cellular structures.

Neurospora

A genus of ascomycete fungi, often used as a model organism in genetics and molecular biology.

Diploid

The condition of having two sets of chromosomes per nucleus. Compare with haploid and polyploid.

Nucleic Acids

Biomolecules essential for life, including DNA and RNA, that carry genetic information and are involved in protein synthesis.