The Standard Deviation Is Always Positive or Equal to 0

question 76

True/False

The standard deviation is always positive or equal to 0.

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Definitions:

Laboratory Experiment

A research method in which variables can be controlled and manipulated in a highly regulated environment to observe the effects on other variables.

Psychological Experiment

An investigation in which a researcher manipulates one or more variables to observe the effect on some behavior or mental process.

Negative Correlation

A relationship between two variables in which one variable increases as the other decreases, indicating an inverse association.

Correlation Coefficients

Statistical measures that describe the extent to which two variables change together, indicating the strength and direction of a linear relationship between them.