SD (Standard Deviation)

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SD (Standard Deviation)

Post by jettyboy1 on Thu Aug 09, 2007 10:10 pm

What does Standard Deviation actually mean?
What is it used for?
How does it help us in improving our times?

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Re: SD (Standard Deviation)

Post by Loki on Thu Aug 09, 2007 10:51 pm

Standard deviation is the measure of the spread of your cubing time, it means it measures the spread of number of tries in your average time trial. Mas madali explain kung may graph hehehe

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Re: SD (Standard Deviation)

Post by mrvivi80 on Thu Aug 09, 2007 11:24 pm

haha ^_^ na tackle namin yan sa statistics nmin Razz

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Re: SD (Standard Deviation)

Post by jettyboy1 on Fri Aug 10, 2007 12:02 am

huh... di pa ako gets.

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Re: SD (Standard Deviation)

Post by MetaboringJohnCañares on Fri Aug 10, 2007 8:17 am

I'll make it simple for you. If your SD has a bigger number, that means your average is much closer to luck, its not stable. If you get a smaller number, that means your stable in your times.

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Re: SD (Standard Deviation)

Post by mykeldg on Fri Aug 10, 2007 1:08 pm

in the series of numbers :

1 1 1 1 1 1 1 1 1

the standard deviation is at it's minimum. (the difference between each number in the series is zero)
The numbers are flawlessly consistent.


In this series, however :

1 999 2 3 87 64 2 1 43

it is huge. The difference between them are enormous, thus, illustrating the numbers in the series as inconsistent.


Standard Deviation, then, is simply the parameter that identifies the consistency of your solving times. As defined by John Cañares, it does quantify your luck when looking at your average. ü

Very Happy:D:D

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Re: SD (Standard Deviation)

Post by mitch12 on Fri Aug 10, 2007 3:13 pm

14 pa lang kc c jetty, hehe, di nya kagad magets.. basta in short SD ay parang rank mo in solving cubes.. buti ka pa nga mabilis na tlga u magsolve.. hehe, bibilis din ako.. tnx nga pla jet ako ung nagpaturo sau magsolve nung 2x2x2 nung 3rd cube meet.. hehe, simple lang pla un

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Re: SD (Standard Deviation)

Post by ynajatrice on Sun Aug 19, 2007 8:27 pm

stat major po ako dati bago ako naging math major ngaun

at ang pagkakaalala ko sa SD

un na nga

sinabi na ng iba nating cubers

dispersion o spread ng data (or tym in this case)

mas malapit sa zero, mas "consistent"

mas malayo sa zero, mas madalas ung "luck"

sana makatulong!

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Re: SD (Standard Deviation)

Post by jettyboy1 on Mon Aug 20, 2007 12:57 am

MetaboringJohnCañares wrote:I'll make it simple for you. If your SD has a bigger number, that means your average is much closer to luck, its not stable. If you get a smaller number, that means your stable in your times.

ah... ok i get it na... finally. = =

mitch12 wrote:14 pa lang kc c jetty, hehe, di nya kagad magets.. basta in short SD ay parang rank mo in solving cubes.. buti ka pa nga mabilis na tlga u magsolve.. hehe, bibilis din ako.. tnx nga pla jet ako ung nagpaturo sau magsolve nung 2x2x2 nung 3rd cube meet.. hehe, simple lang pla un

no prob man! anytime.

thanks guys for helping me understand SD.

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Re: SD (Standard Deviation)

Post by hopelessvain on Mon Aug 20, 2007 9:00 am

aw. i get SD of 2 to 3 seconds. normally.

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Re: SD (Standard Deviation)

Post by nyin on Wed Aug 22, 2007 9:09 pm

ako sobrang laki lagi ng sd.. hehe madistract lang kasi ako ng konti, ang laking effect na.. mabilis pa naman ako madistract.. hehe

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Re: SD (Standard Deviation)

Post by hopelessvain on Wed Aug 22, 2007 10:00 pm

minsan, ngssound3p ako(mp3) hbng kmkuha ng average. para bawas distraction. hehehe

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Re: SD (Standard Deviation)

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