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.
The standard deviation of the frequency distribution table is 19.76797544.Use the following formula to find Variance. Variance = s 2 Therefore, the variance is the answer on the previous screen before you took the square root of the answer.The variance of the frequency distribution table is 390.7728532.he standard deviation of the frequency distribution table is 19.76797544.Use the following formula to find Variance. Variance = s 2 Therefore, the variance is the answer on the previous screen before you took the square root of the answer.The variance of the frequency distribution table is 390.7728532.