Examlex
We can expect some difference between sample statistics and the corresponding population parameters. This difference is called the sampling error.
Set Notation
The formal language used to describe a set, including symbols and conventions for expressing membership, union, intersection, and other set properties.
Union
The set containing all elements from two or more given sets, without duplication.
Absolute Value
A mathematical function that measures the distance of a number from zero on the number line, disregarding direction; it's always non-negative.
No Solution
A condition where an equation or system of equations has no possible values that satisfy it.
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