KINE 2050 Lecture Notes - Lecture 11: Statistical Inference, Binomial Distribution, Null Hypothesis
6 Mar 2018
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P(a and b) = p(a) x p(b: this is the probability of ipping two things, so ipping heads and tails with two coins. P(a or b) = p(a) + p(b) - p(a and b) if not mutually exclusive: this is the probability of getting one or another thing, so ipping heads or tails. Methods of counting (two types: permutations: this is an ordered sequence of things, or objects. The order matters: combinations: a set of things or objects where the order doesn"t matter. Permutation: each order of the same objects is a di erent permutation. So how many di erent ways can you order abc. Example: how many di erent ways can you order a,b,c,d,e: you do 5x4x3x2x1, or just 5! (factorial, so the equation is n! Now say you have to see how many permutations of three objects from 5 you can have: now its 5x4x3.
