If We Examine a Frequency Distribution and Find It to Be

question 67

Multiple Choice

If we examine a frequency distribution and find it to be very "stretched out" (not compressed) , we can say:

• A) There is a low standard deviation.
• B) There is an average standard deviation.
• C) There is a high standard deviation.
• D) There is low variance.
• E) None of the above: frequencies do not communicate anything about variability.

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Definitions:

Correlation Coefficient

The correlation coefficient is a statistical measure that calculates the strength and direction of a linear relationship between two quantitative variables.

Paired Observations

Data collected in pairs such that each observation in one group is related or matched to an observation in another group.

Spearman Rank Correlation

An unparametric method for determining rank correlation that evaluates the extent to which two variables' relationship can be characterized by a monotonic function.

Ordinal Variables

Variables that represent categories with a natural order but which do not have a fixed interval between values, allowing for ranking but not quantifiable difference measurement.