In Sub-Saharan Africa, Mortality Numbers for Children Younger Than Age

question 43

Multiple Choice

In Sub-Saharan Africa, mortality numbers for children younger than age 5 have declined from 12.4 million in 1990 to ______ million in 2009.

• A) 8.1 million
• B) 5 million
• C) 2.6 million
• D) 1.1 million

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Definitions:

Correlation Coefficient

The correlation coefficient is a statistical measure that calculates the strength and direction of a linear relationship between two quantitative variables.

Paired Observations

Data collected in pairs such that each observation in one group is related or matched to an observation in another group.

Spearman Rank Correlation

An unparametric method for determining rank correlation that evaluates the extent to which two variables' relationship can be characterized by a monotonic function.

Ordinal Variables

Variables that represent categories with a natural order but which do not have a fixed interval between values, allowing for ranking but not quantifiable difference measurement.