The Incidence of Down Syndrome Increases

question 75

Multiple Choice

The incidence of Down syndrome increases

• A) when the mother is exposed to lead during pregnancy.
• B) as the age of the parents increases.
• C) when the mother drinks heavily during pregnancy.
• D) if the father is extremely young.

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Definitions:

Range

The difference between the highest and lowest values in a data set.

Coefficient of Variation

A normalized measure of dispersion of a probability distribution, calculated as the ratio of the standard deviation to the mean, usually expressed as a percentage.

Variability

The extent to which data points in a dataset differ from each other and from the mean of the dataset.

Standard Deviation

The statistical measurement that calculates the spread or dispersion of a dataset relative to its mean, providing insight into the concentration of data points.