My Chrony chronograph will only display individual shot velocity unless a pushbutton switch is plugged into the jack on it's side. Some may not have this switch or are debating buying or making one. There may be some chronographs out there that do not have any capacity to calculate standard deviation. I forgot my switch the other day and had no ability to get SD or average and once the chrono is shut off, all data is lost. So I simply wrote down each individual shot velocity.
I found this calculator and you simply type in each shot and it will calculate useful data for you. I'm sure there are others, but this one is the first one I clicked on and it worked well.
http://easycalculation.com/statistics/standard-deviation.php
I found this calculator and you simply type in each shot and it will calculate useful data for you. I'm sure there are others, but this one is the first one I clicked on and it worked well.
http://easycalculation.com/statistics/standard-deviation.php
