Examlex
Which of the following is the easiest to compute?
Cov(x,y)
The covariance between two variables X and Y, measuring how changes in one variable are associated with changes in a second variable.
Interquartile Range
A measure of statistical variability, defined as the difference between the third and first quartiles of a data set, indicating the spread of the middle 50% of the data.
Test Scores
The numerical outcomes or results obtained from administering educational or psychological tests to evaluate skills, knowledge, or abilities.
Quartiles
Values that divide a set of data into four equal parts, each representing a 25% interval.
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