Examlex
Learned helplessness can only occur in animals, not in humans.
Variability
The extent to which data points in a statistical distribution or data set diverge from the average or mean.
Normal Distribution
A symmetrical, bell-shaped distribution of data where most of the observations cluster around the central peak and probabilities for values taper off equally on both sides.
Standard Normal Distribution
A specific probability distribution that has a mean of zero and a standard deviation of one, representing a normal distribution.
Unit of Measurement
A definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.
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