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To effectively do this, you must understand what normal probability and normal probability plots are. They are important ...
the cumulative probability distribution of a set of data may be plotted on "probability" paper. If the data plot as a straight line, then the distribution is normal. Procedures for fitting probability ...
It is bell-shaped and symmetric, and is very common in "real life". Normal Probability Plot: a quantile-quantile plot where one of the data sets is normally distributed. Probability Density Function: ...
title 'QQ Plot'; plot r.*nqq. / noline mse cframe=ligr modellab="'Best' Two-Parameter Model:"; run; Output 55.8.1: Normal Probability-Probability Plot for the Residuals Output 55.8.2: Normal ...