2021年2月19日金曜日

Bernoulli distribution

We are back to civilized society, but this is heads or tails. This is gambling like stock market. The average line is 50%, so you have two choices which are up or down.
1 is head. 0 is tail.
P is probability.

If you have a die, probability of 1 is 1/6.

P(X=1)=1/6



0 is the other.

P(X=0)=5/6

You have dice 10 times, and you get one 6 times.

P(X=6)=10C6*(1/6)^6*(5/6)^(10-6)≒0.2170635%



This is how many times you have 1 in 10 times.


dice



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