Examlex
With which of the following leaders did President Barack Obama have a particularly warm relationship?
Sample Variance
The measure of dispersion or variability within a sample data set, quantifying the spread of its values.
Variability
The extent to which data points in a statistical distribution or set differ from each other and from the mean or average.
Mean
The average of a set of numbers, calculated by dividing the sum of all numbers by the count of numbers.
Range
The difference between the highest and lowest values in a set of data.
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