Garmin Xero C1 Pro chrono

[jasper2408]

Here is the formula used for Population SD in my SD program.
I used these 4 values (1250,1300,1275,1240) so that you can trace them in the formula. 1266.25 is the Mean Average

Population Standard Deviation (SD)
= sqrt(1/(N) * ((X1-M)^2 + (X2-M)^2 + .... +(XN-M)^2))
= sqrt(1/4 * ((1250-1266.25)^2 + (1300-1266.25)^2 + (1275-1266.25)^2 + (1240-1266.25)^2))
= sqrt(1/4 * ((-16.25)^2 + (33.75)^2 + (8.75)^2 + (-26.25)^2))
= sqrt(542.1875)
= 23.28492

Here is the formula used for Standard SD in my SD program. Don't know if this is Sample SD or not.

Standard Deviation (SD)
= sqrt(1/(N-1) * ((X1-M)^2 + (X2-M)^2 + .... +(XN-M)^2))
= sqrt(1/(4-1) * ((1250-1266.25)^2 + (1300-1266.25)^2 + (1275-1266.25)^2 + (1240-1266.25)^2))
= sqrt(1/3 * ((-16.25)^2 + (33.75)^2 + (8.75)^2 + (-26.25)^2))
= sqrt(722.9167)
= 26.88711