BIO 325 Lecture Notes - Mutual Exclusivity, Binomial Theorem, Null Hypothesis
29 Sep 2013
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Document Summary
Product (multiplication) law - probability of two independent events occurring at the same time. Events that are independent and simultaneously happening. Sum (addition) law - the probability of any one of the two or more mutually exclusive events. Example: event 1 is happening but event 2 and 3 aren"t happening at the time. Without replacement ---- do not put back the one you just picked. With replacement --- put back what you chose back in. Expand the binomial so you can figure out which part of the expression you need to solve. Null hypothesis- there is no real difference between the measures values (or ratio) and the predicted values (or ratio) Used to describe how well the data fit the null hypothesis. If you get p>0. 05 it means the difference isn"t significant -- null hypothesis failed to reject. If you get p<0. 05 it means the difference is very significant ---- null hypothesis is rejected.
