In the United States,the Average Life Expectancy Is Currently About

question 55

Multiple Choice

In the United States,the average life expectancy is currently about _____ years.

• A)72
• B)79
• C)84
• D)86

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Definitions:

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values from the mean.

Variance

A measure of variability that describes the spread of a data set or distribution, calculated as the average of the squared differences from the mean.

Population Parameter

A numerical value that represents a characteristic of an entire population, such as its mean or variance.

Sample Statistic

A numerical value calculated from a subset (sample) of a population, used to estimate the characteristics of the entire population.