The Major Etiologic Agent of Bacterial Endocarditis in the United

question 6

Multiple Choice

The major etiologic agent of bacterial endocarditis in the United States is:

• A) Enterococcus faecalis.
• B) Streptococcus pneumoniae.
• C) S. pyogenes.
• D) viridans streptococci.

---

Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation means the values are close to the mean, while a high standard deviation means the values are dispersed over a wider range.

Standard Normal Random Variable

A random variable with a mean of zero and a variance of one, following the standard normal distribution.

Area

The measure of the extent of a two-dimensional surface or shape, expressed in square units.

Z

Often refers to a Z-score in statistics, representing the number of standard deviations a data point is from the mean.