How Is "Prevalence" Different from "Incidence

question 26

Multiple Choice

How is "prevalence" different from "incidence?"

• A) It gives all cases at a time point, not just new cases.
• B) It shows only new cases at a time point, not all cases.
• C) It quantifies the flow and not the stock of a variable.
• D) It gives the mean value, and not the total value.

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Definitions:

Industry

A group of companies that produce similar products or services, often characterized by shared markets, competition, and regulations.

Industry Concentration Ratio

A measure used to determine the extent of market control held by the largest companies within an industry, often indicating the level of competition.

Perfect Competition

A market structure where many firms sell identical products, entry and exit to the market are easy, and no single firm can influence the market price.

Medium-sized Firms

Companies that occupy the middle ground in terms of annual revenues and employee numbers, larger than small businesses but smaller than large corporations.