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How do most opinion polls get a representative sample?
Standard Deviation
A statistical measure that indicates the variability or volatility of a set of data points.
Returns
The income generated from an investment, often represented as a percentage of the investment's original or ongoing value.
Years
A unit of time used to describe duration or the length of time, consisting of 365 (or 366 in leap years) days or 12 months.
Real Rate of Return
The annual percentage return realized on an investment, adjusted for changes in price due to inflation or other external effects.
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