The Decline in Teen Births in the U

question 30

Multiple Choice

The decline in teen births in the U.S.has been attributed to all of the following except ________.

• A)development of more effective hormonal contraceptive methods
• B)increased use of condoms
• C)increased rate of abortion
• D)increase in number of teens postponing sexual intercourse

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Definitions:

Empirical Rules

A set of guidelines that indicate how the data are spread in a normal distribution, specifically stating that approximately 68%, 95%, and 99.7% of the data fall within one, two, and three standard deviations from the mean, respectively.

Standard Deviations

A measure of the amount of variation or dispersion of a set of values, indicating how much the values differ from the mean.

Observations

Data collected or noticed during an experiment or study, often referring to the individual data points or recorded occurrences.

Empirical Rules

Generalizations based on observations and experience rather than theory, often used in statistical analysis.