Business / Finance / Alpha Equation: Regression usually run over 36-60 months of data: Return-Treasury bill= alpha + beta (S&P 500 - Treasury bill) + error. The alpha is the intercept. Note that the benchmark does not necessarily have to be the S&P 500. A mutual fund specializing in international investment might be benchmarked to a broader world market index, such as the MSCI World Index.
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Science / Tides and Currents / Equation Of Time: Difference between mean and apparent time. From the beginning of the year until near the middle of April, mean time is ahead of apparent time, the difference reaching a maximum of about 15 minutes ne MORE
Science / Chemistry / Ionic Equation: An ionic equation is a balanced chemical equation in which strong electrolytes are written as dissociated ions. For example, Ag+(aq) + NO3-(aq) + Na+(aq) + Cl-(aq) = agcl(s) + Na+(aq) + NO3-(aq) is an MORE