Examlex
A defining characteristic of the correlational study is
Z-Score
Scores for the standard normal distribution measured in standard deviation units.
Standard Normal Distribution
The standard normal distribution is a special case of the normal distribution with a mean of zero and a standard deviation of one, used in z-tests.
Mean
To determine the arithmetic average, one sums up every number in the collection and divides by the number of elements in the collection.
Standard Deviation
An indicator that measures how much a set of data points spread out or diverge.
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