My rule: Keep records and tax returns for years that include atypical transactions (sales or donations of property) and irregular income (stock option exercises, trust income, etc.) for six years after the filing date of the return. Keep a 2005 tax return that includes reporting of irregular items until April 2012.
Logistic regression was developed by statistician David Cox in 1958 (although much work was done in the single independent variable case almost two decades earlier). The binary logistic model is used to estimate the probability of a binary response based on one or more predictor (or independent) variables (features).
Marketers use Logistic Regression to rank their prospects with a quality score which indicates that prospectâs likelihood to buy. The more data youâve collected from previous prospects, the more accurately youâll be able to use Logistic Regression in Excel to calculate your new prospectâs probability of purchasing.n general, the thing being predicted in a Regression equation is represented by the dependent variable or output variable and is usually labeled as the Y variable in the Regression equation. In the case of Logistic Regression, this âYâ is binary.