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There has been a significant decrease in the number of single-parent households.
Arithmetic Average Return
The simple average of a series of returns over a period of time, calculated by summing the returns and dividing by the number of periods.
Jensen's Measure
A performance evaluation measure that calculates the excess return a fund generates over its expected return, given its level of risk.
Risk-Free Return
The theoretical return on an investment with no risk of financial loss, often represented by the yield on government securities such as U.S. Treasury bonds.
Beta
A measure of a security's volatility in relation to the overall market; a beta greater than 1 indicates greater volatility than the market.
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