Examlex
There is a greater chance of making a Type I error using a = 0.05 when using the t test for correlated groups then when using the sign test on the same scores.
Weighted Average
An average that attributes different weights to elements in the dataset, reflecting their varying levels of importance or frequency.
Expected Value
The long-run average value of repetitions of the experiment it represents, in probability and statistics.
Random Variable
A quantity whose numerical values emerge from unpredictable phenomena.
Discrete Random Variable
A variable that takes on a finite or countably infinite number of values, each with a quantifiable probability.
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