Examlex
Rating the satisfaction of a hotel room on a 1-5 scale is an example of a discrete random variable.
z
A statistical measure that represents the number of standard deviations a data point is from the mean.
Normally Distributed Random Variable
A variable that follows a Gaussian distribution, characterized by its bell-shaped curve, where the mean, median, and mode are all equal.
Mean
The arithmetic average of a set of values or distribution.
Variance
A measure of the spread of a set of numbers, indicating how much the values differ from the mean of the set.
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