Probabilities
Published on June 1, 2025
I plan to write more in the upcoming year, and for this to happen I need to understand if this is even possible. So, to make a habit happen, I try to find out how often it could happen, and then determine the tenergy needed for improving the odds.
This leads me to probabilities!
Conditional events (B needs A to happen, or B given A, or P(A|B))
P(A and B) = P(A) * P(B given A) P(A or B) = P(A) + P(B) - P(A) * P(B given A)
Independent:
P(A and B) = P(A) * P(B) P(A or B) = P(A) + P(B) - P(A) * P(B)
And finally, Bayes comes to play:
P(A|B) = P(B|A) * P(A) / P(B)P(A|B) = P(B|A) * P(A) / P(B)