So how many tests would Tim K have needed to do to get that results by chance?

It doesn't matter whether you're being tested on even chance or higher odds; standard deviation is 'standardized', meaning it has the same meaning whatever the odds.

But I'll grant you that 4.77 is very good, the corresponding probability is over 1 in a million. Of course that doesn't mean that you would have to take the test 1 million times before you got a score like that, just as the probability of 1/37 doesn't mean your number won't hit until the 37th spin. Due to variance, your number could hit on the very first spin, or 500 spins later.

However, the fact that Tim K has achieved those scores multiple times has definitely piqued my interest, and perhaps I should take winforus' advice and find out for myself whether there really is anything to this precog stuff. I'm still sceptical, but I'll give it another try. I did try it for a couple of weeks and got no significant results, but I guess I should give it longer this time.

I found this site :

https://thepremonitioncode.com/tester/It has a training regime and you can take tests, and the owner does have some scientific training, although there aren't any participants in the 'Hall of Fame' yet.

https://thepremonitioncode.com/tester/hof.php (you might have to register at the site before you see that page).

See, I'm not as closed-minded as you think.

I'll give it a few months and report back. Anyone read her book?

https://www.amazon.co.uk/Premonition-Code-Science-Precognition-Sensing/dp/1786781611/ref=pd_rhf_gw_p_img_1?_encoding=UTF8&psc=1&refRID=5T9WJS4JA512PH5SWB43