In 41 patients, all hyperfunctioning parathyroid tissue was resected at the time of surgery and confirmed by a corresponding decrease in the intraoperative postexcision rapid PTH determination as well as by subsequent normalization of postoperative serum calcium and PTH levels and resolution of clinical symptoms.
In other words, the standard deviation Ï (sigma) is the square root of the variance of X; i.e., it is the square root of the average value of (X â Î¼) 2. The standard deviation of a (univariate) probability distribution is the same as that of a random variable having that distribution.
R Square. This is the most important number of the output. R Square tells how well the regression line approximates the real data. This number tells you how much of the output variableâs variance is explained by the input variablesâ variance.Ideally we would like to see this at least 0.6 (60%) or 0.7 (70%). Square. This is the most important number of the output. R Square tells how well the regression line approximates the real data. This number tells you how much of the output variableâs variance is explained by the input variablesâ variance.