Which of the Following Observations Is True

question 115

Multiple Choice

Which of the following observations is true?

• A) Tobacco use has increased in the United States.
• B) Tobacco use has increased in most industrialized countries.
• C) Tobacco use is increasing in developing countries.
• D) Tobacco use is banned in few industrialized countries.

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Definitions:

Sample

A subset of individuals or observations selected from a larger population for the purpose of statistical analysis.

Mean

The mean of a number set, found by dividing the total sum of the numbers by the quantity of numbers present in the set.

Confidence Interval

A selection of numerical values, from the analysis of sample stats, predicted to encapsulate the value of an unknown attribute of the population.

Mean

The arithmetic average of a set of numbers, calculated by adding all the numbers together and dividing by the count of those numbers.