How many times after 80 spins?
If you have a wheel with the numbers “1,2,3 & 4” on it and you spin it 80 times, whats the probabilty of landing on an even number?
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How isn’t the answer half? If you are spinning a wheel, and you let it go around 80 times, you stop the wheel after the 80 rotations, there’s a 50% chance it’s an even number, the number of times the wheel goes around doesn’t affect the probability at all. That’s like saying, if I roll a dice around in my hand for 50 seconds, instead of 2 seconds, what’s my chance of getting a double. It’s still going to be the same no matter what.
On the other hand, if you meant Spinning a wheel and looking at the numbers 80 times in a row and the probability of them being even all times is a very very very small number. (.5^80)
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4 digits, 80 spins
4/80=.025
.025 means there is a 2.5 in 100 probability that it will land even
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Here is what appears to be a good website for you.
http://www.mathgoodies.com/lessons/vol6/intro_probability.html
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