The Standard Deviation of a Sample of 100 Elements Taken

question 56

Multiple Choice

The standard deviation of a sample of 100 elements taken from a very large population is determined to be 60. The variance of the population

• A) cannot be larger than 60.
• B) cannot be larger than 3600.
• C) must be at least 100.
• D) can be any value greater or equal to zero.

Understand the role of demographic, geographic, and health behavior data in epidemiological research.

Recognize the importance of research design in epidemiological studies.

Recognize the importance of identifying variables in disease causation and prevention.

Comprehend the significance of screening tests' sensitivity, specificity, and predictive values.

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Definitions:

Front-end Load

An upfront sales charge investors pay when they purchase mutual fund shares, which reduces the amount of the investment.

Back-end Load

A fee paid by investors when selling mutual fund shares, typically decreasing over time the longer shares are held, designed to discourage quick withdrawals.

Front-end Load

A sales charge or commission that investors pay upfront when purchasing shares of a mutual fund or investment, typically used to compensate brokers.

Back-end Load

A fee paid by investors when they sell shares of a mutual fund, often decreasing over time the longer shares are held.