The average mean of this set is 164 now out this mean in the formula of standard deviation as shown below. The sample size of more than 30 represents as n. Scenario C 1 assumes that the median the minimum the maximum and the sample size are given for a clinical trial study.
Estimating X and S from C 1.
The mean of the data is 122465 155 3. It is worth noting that there exist many different equations for calculating sample standard deviation since unlike sample mean sample standard deviation does not have any single estimator that is unbiased efficient and has a maximum likelihood. When we used the whole population we got. Is the need of a perfect formula that is why below we are giving you main formula needed to calculate sample standard deviation formula mean formula sample variance formula etc.