Higher income individuals can afford to pay higher dollar amounts in taxes. The least fair tax is the sales tax - specifically sales taxes levied on life's necessities, such as food purchased in grocery stores. There is large variation across the country in terms of state/local tax burdens on the poor.
The U.S. Air Force recognized the merit of Weibull's method and funded his research until 1975. Today, Weibull analysis is the leading method in the world for fitting and analyzing life data. Dorian Shainin introduced the author to statistical engineering at the Hartford Graduate Center (RPI) in the mid-fifties.
Factor Analysis. Exploratory factor analysis is a statistical approach that can be used to analyze interrelationships among a large number of variables and to explain these variables in terms of a smaller number of common underlying dimensions.actor analysis is based on a correlation table. If there are k items in the study (e.g. k questions in the above example) then the correlation table has k Ã k entries of form rij where each rij is the correlation coefficient between item i and item j.