7 terms

# Statistics

#### Terms in this set (...)

Outliers
an observation point that is distant from other observations. An outlier may be due to variability in the measurement or it may indicate experimental error; the latter are sometimes excluded from the data set.

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Self-Fulfilling Prophecy
a prediction that directly or indirectly causes itself to become true, by the very terms of the prophecy itself, due to positive feedback between belief and behavior.

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Correlation versus Causation
a phrase used in statistics to emphasize that a correlation between two variables does not imply that one causes the other. Many statistical tests calculate correlation between variables. A few go further, using correlation as a basis for testing a hypothesis of a true causal relationship.

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Mean
measure of the central tendency either of a probability distribution or of the random variable characterized by that distribution.

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Median
the value separating the higher half of a data sample, a population, or a probability distribution, from the lower half.

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Mode
the value that appears most often in a set of data.

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Distribution
the frequency of various outcomes in a sample.

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