The Shape of a Country's Population Pyramid

question 44

Multiple Choice

The shape of a country's population pyramid

• A) is determined primarily by its crude birth rate.
• B) has no correlation to its crude death rate.
• C) cannot be used to estimate the country's dependency rate.
• D) cannot be used to estimate the country's sex ratio.
• E) is determined primarily by the combination of its crude birth rate and its crude growth rate.

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Definitions:

Regression

In statistics, the act of estimating the relationship between variables, allowing for the prediction of one variable based on the value of another.

Residuals

The differences between observed values and the values predicted by a model, indicating the discrepancy in data fit.

Scatterplots

Graphical representations that use Cartesian coordinates to display values for typically two variables for a set of data.

Linear Model

A statistical model that assumes a linear relationship between the input variables and the single output variable.