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#1

Hi all!

I beat my PB Ao12 yesterday and I got a standard deviation of 2.87. Another guy posted his PB Ao12 right after me (both posts are consecutive here in the accomplishment thread). His Ao12 was 0.1 worse than mine but the std.dev was 0.82.

So I started to think perhaps my consistency is not very good. In a typical Ao100 I still get like 20% over 25sec solves, even 1 or 2 over 30sec and, at the same time I get around 15% sub-20 with several 17-18 sec solves. Typical std. dev for an Ao100 ranges from 2.2 to 2.6.

Most of the over 24-25 sec times are due to missed OLL / PLL, wrong slot for an F2L pair and that kind of silly mistakes. Do you guys experience the same problem or is it just me and my recognition / visual memory being bad?

Also a question for the mathematician out there. I have seen that the way csTimer calculates std. dev. for , e.g., an Average of 5 is not with the 5 values and the full population formula but with just the 3 counting values and the "sample of population" formula. Not sure if this is the most meaningful way to calculate std.dev when you have the whole population to calculate with.

I beat my PB Ao12 yesterday and I got a standard deviation of 2.87. Another guy posted his PB Ao12 right after me (both posts are consecutive here in the accomplishment thread). His Ao12 was 0.1 worse than mine but the std.dev was 0.82.

So I started to think perhaps my consistency is not very good. In a typical Ao100 I still get like 20% over 25sec solves, even 1 or 2 over 30sec and, at the same time I get around 15% sub-20 with several 17-18 sec solves. Typical std. dev for an Ao100 ranges from 2.2 to 2.6.

Most of the over 24-25 sec times are due to missed OLL / PLL, wrong slot for an F2L pair and that kind of silly mistakes. Do you guys experience the same problem or is it just me and my recognition / visual memory being bad?

Also a question for the mathematician out there. I have seen that the way csTimer calculates std. dev. for , e.g., an Average of 5 is not with the 5 values and the full population formula but with just the 3 counting values and the "sample of population" formula. Not sure if this is the most meaningful way to calculate std.dev when you have the whole population to calculate with.