ybot
ybot
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Joined: Jan 8, 2012
December 17th, 2012 at 4:08:27 AM permalink
a)You play 1000 spins, strait up to #5 and hit 43 times. Your play reached +3standard deviations. the same thing happens hitting 197 times on a 6-number-section within 1000 spins.
That was easy to undestand.
What if you already have the 1000 trials where one number hit 43 times or a 6-number-section hit 197 times?
I guess the chance to get 3 ST dev multiply for 37 because we did not pick the number or section beforehand.

Is there a way to really know the difference and how much we need to reach the 1st situation?

b)Is there a way to measure differencies when you reach 3 st dev in 100 1000 5000 or 10k spins?
For example: you played 1000 spins where you hit 43 times playing 1 number and another player hit 25 times in 500 spins playing a number.
What are the differencies?
vendman1
vendman1
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December 17th, 2012 at 5:37:13 AM permalink
ummm...what?
dwheatley
dwheatley
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December 17th, 2012 at 7:40:37 AM permalink
I have tutored graduate level statistics to people who don't speak english very well, and I am confused by your question. Here is an attempt to answer what i think you asked:

a) you can look over any number of trials you want. If you were lucky and use the correct formula, you may conclude your results were +3 stdev for that period. But it doesn't matter that you were +3 stdev over any period, except that now you have more money than you used to.
You can also calculate the number of spins or successful results you need in any situation, but again, it doesn't actually matter. If you want a #, be more precise.

b) the difference in what? the # of stdevs apart? That's easy to calculate. Clarify?
Wisdom is the quality that keeps you out of situations where you would otherwise need it
ybot
ybot
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December 17th, 2012 at 8:00:35 AM permalink
The point is this:
You can gauge the st dev at the begining of a day or after several trials.

The probability to hit such as to reach +3sd is lower when you pick the number at the beginning.
The chance to find a +3sd in any part of the wheel when you have already some data is higher than the other situation.


The other scenario is to compare the SD through the days when you add more data to what you have

Was it clearer?
kubikulann
kubikulann
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December 21st, 2012 at 3:31:55 AM permalink
Quote:

Was it clearer?

No.
Reperiet qui quaesiverit
ybot
ybot
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December 21st, 2012 at 3:39:08 AM permalink
This is a math question about SD.
I just want to know how easier is to get the same amount of SD when you already have the data oposite of when you play spin by spin.
When you have past data you scan where were the hot section and measure the SD that it had.
Playing a section spin by spin becomes harder to get the same SD
I guess you caught it.
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