Examlex
Stratified sampling is a sampling method that in no way involves simple random sampling.
Bonds
Financial instruments representing loans made by an investor to a borrower, typically corporate or governmental, which must be paid back with interest.
Positive Integers
Whole numbers greater than zero, found to the right of zero on the number line.
Difference
The result of subtracting one number from another to show the gap or distance between them.
Substitution
A method used in algebra and calculus involving replacing a variable with its corresponding value or another expression to simplify or solve an equation.
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