Which of the Following Paired Variables Might Indicate a Correlation

question 136

Multiple Choice

Which of the following paired variables might indicate a correlation but NOT causation?

• A) advertising expenditures and sales
• B) snowfall amounts and stock market performance
• C) age and health care expenditures
• D) grade point average and future income

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Definitions:

Normally Distributed

A type of distribution for a variable where data are symmetrically distributed around the mean, showing a bell-shaped curve.

Average Balance

The mean amount of money held in an account over a certain period.

Standard Deviation

An index of variability that quantifies the spread of a set of numbers or the dispersion from the average.

Exponential Distribution

The exponential distribution is a continuous probability distribution that describes the time between events in a Poisson process, where events occur continuously and independently at a constant average rate.