Is standard deviation how far outside of its average expected hit range a number ventures..
My question anyway isnt that its ... how much more than its expexted range can a number hit over millions of spins. . Maximum ever... so it should have hit 500 times. .. but it hits 600 and thats the most high it ever hits above average or 1 /37
Standard deviation is SQRT (npq)
So put in n=1,000,000 p=1/37 q=36/37 and do the arithmetic.
Over that number of spins, normal distribution applies so within one SD off mean is 68% chance, within two SD is 95% etc.
Take a look at this website
link:s://towardsdatascience.com/understanding-the-68-95-99-7-rule-for-a-normal-distribution-b7b7cbf760c2
Mean is 1,000,000/37 ;)