estimate
Estimates the sample standard deviation from the range. Wan, Xiang, Wenqian Wang, Jiming Liu, and Tiejun Tong. “Estimating the Sample Mean and Standard Deviation from the Sample Size, Median, Range and/or Interquartile Range.” BMC Medical Research Methodology 14, no. 1 (December 2014): 135. https://doi.org/10.1186/1471-2288-14-135.
Return
the estimated standard deviation
Parameters
range
the sample range. Must be positive.
iqr
the interquartile range. Must be positive.
n
the size of the sample