Examlex
What is the name of the first widely used group achievement test?
Standard Normal
A Gaussian distribution defined by a zero mean and a one standard deviation.
Random Variable
A numerical variable influenced by the randomness of an event.
Standard Normal
A normal distribution with a mean of 0 and a standard deviation of 1, used in statistics to simplify calculations and analysis.
Random Variable
A variable with values that are numerical manifestations of random happenings.
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