Standard deviation and spread

[GQ]

Hi guys
What is the SD and spread from this data ?

 

[mmahoney]

The spread is 15. (Found subtracting the low from the high) 
Standard Deviation is <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->25.5002451 (found using a spreadsheet)

 

[Guest]

"GQ"Hi guys
What is the SD and spread from this data ?

The standard deviation of that string is: 3.79857 feet per second
There is a standard deviation calculator here https://www.easycalculation.com/statistics/standard-deviation.php

 

[GQ]

"mmahoney"The spread is 15. (Found subtracting the low from the high) 
Standard Deviation is <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->25.5002451 (found using a spreadsheet)

Impossible to see the results here.

 

[marcella69]

That's an excellent SD! Way to go

 

[GQ]

This one is better

 

[Eddy1840]

What setting are you using?? Mine is shooting an average of 842 jsb mk2 and a spread of 15 I have the power wheel on max, valve on the 3 line and the regulator on 143 bars ..

 

[GQ]

Regulator show 145 ,,,i am sure it is not accurate....i am sure i am at 150
Power wheel = MAX
Valve 4
I also sorted my pellets for chrony.
Are you sure your power,wheel set screw is tight when at MAX ?

 

[GQ]

I have found this doc here. I thinkmitnis from Michael.

 

[GQ]

Some results with my .30 cal Impact