If a Data Point Is Influential It…

question 14

Multiple Choice

If a data point is influential it…

• A)has a small residual.
• B)is guaranteed to be extreme in the vertical direction.
• C)is guaranteed to be extreme in the horizontal direction.
• D)will change the slope of the regression equation.
• E)none of these.

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Definitions:

Prevalence

The proportion of a population found to have a condition or disease at a specific time.

Epidemiological Transition

A phase of development marked by a sudden and stark increase in population growth rates brought about by medical innovation in disease or sickness treatment.

Incidence

The rate at which new cases of a disease or condition occur in a specific population over a given period of time.

Morbidity

Refers to the state or quality of being diseased or the incidence of illness in a population.