Displaying Data in a Scatterplot Can Help Us See the Extent

question 46

Multiple Choice

Displaying data in a scatterplot can help us see the extent to which two variables are

• A) random samples.
• B) located on the normal curve.
• C) correlated.
• D) related to the mean.

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Definitions:

Standard Normal Random Variable

A special case of the normal distribution with a mean of zero and a standard deviation of one.

Probability

The measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

z

A standard score representing the number of standard deviations an observation or datum is above or below the mean of what is being observed or measured.

Standard Normal

An ordinary distribution with a 0 mean and a 1 standard deviation.