Demographers Refer to Changes in the Ratio of Births to Deaths

question 11

Multiple Choice

Demographers refer to changes in the ratio of births to deaths in industrialized countries as:

• A) life expectancy
• B) the demographic transition
• C) fertility
• D) life span

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Definitions:

Expected Frequencies

Predicted counts in each category of a contingency table assuming no association between variables.

Chi-Square Test

A statistical test used to determine the likelihood of an observed distribution occurring by chance.

Retirement Age

The age at which a person is expected or required to stop working and is eligible to receive retirement benefits like Social Security or pensions.

Age Distribution

The proportionate numbers of individuals in successive age categories in a given population.