STP 231 Lecture 8: STP 231 - Lecture 3.2 and 3.3 (Intro) - Probability, Complementation, and Venn Diagrams
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In the short run, the probability fluctuates, but in the long run, it equals out to 50% A test is consisted of two true or false problems, suppose the answers to both questions are true. Event a: student gets exactly one out of two questions correct on the test. Flow from first to second problem for student. Each one t or f can branch off to the second question which is: So if he answered t for 1 and t for 2, then a possibility could be t and t. T for 1 and f for 2 would make t and f. F for 1 and t for 2 would make f and t. F for 1 and f for 2 would make f and f. So four possible outcomes from the branches. Construct probability tree and multiply probability along the branches. Example: when not every outcome is equally likely. There are five runners participating in a race.
