For example, if you entered your data set into cells A1 through A100, then your formula should read: =TRIMMEAN (A1:A100,0.5). Press the "Enter" key to calculate the interquartile range.

How to Calculate a Trimmed Mean in Excel. A trimmed mean is much like a standard mean, which you can derive in Excel using the AVERAGE function. However, instead of using all of the data points to ...

Regression statistics will typically include an R-squared value. The closer to 1 this is, the stronger the correlation between the returns of the two stocks.