Examlex
It takes four consecutive quarters of decline in the GDP for economists to consider the economy to be in a recession.
Variance
A measure of the dispersion of a set of data points around their mean value, indicating how spread out the data points are.
Dependent Samples
Two or more groups of data where the subjects in one group are related or matched with the subjects in the other groups, often used in before-and-after studies.
Variable
Any characteristic, number, or quantity that can be measured or counted; a variable may vary from one observation to another.
Subscript D
Represents a variable or an element in a sequence, denoted with a letter "D" in a subscript position to indicate a specific instance or version of the variable.
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