DrOrmson Measures the Calorie Intake of a Group of 20-Year

question 187

Multiple Choice

Dr.Ormson measures the calorie intake of a group of 20-year olds and finds that the average number of calories consumed per day is greater for males than it is for females.If he also wanted to know how much the number of calories consumed vary within each group,what statistic should he use?

• A) mean
• B) standard deviation
• C) correlation coefficient
• D) probability statistic

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Definitions:

Age

A measurement of the amount of time an individual or object has existed from its birth or creation to a specific date.

Pearson Correlation Coefficient

A statistical measure of the linear correlation between two variables, ranging from -1 to 1, where 1 indicates a perfect positive linear relationship.

Grateful Dead Concert

An event featuring live performance by the Grateful Dead, a renowned American rock band.

Age

A measure of time that an individual, object, or concept has existed, typically expressed in years.