COMM 291 Chapter Notes - Chapter 7: Empirical Probability, Sample Space, Randomness
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COMM 291 Full Course Notes
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Comm291 - chapter 7 - randomness and probability. With random phenomena, we can"t predict the individual outcomes but we can hope to understand characteristics of their long-run behaviour. Ex. we don"t know how many people at rst are calling for platinum card that quali es, but we can develop trend of how many do over time. For each phenomenon we have an attempt (trial) which generates an outcome. We use the more general term event to refer to outcomes or combinations of outcomes. Sample space is the collection of all possible outcomes. Probability is the long run is the percentage in the long run that qualify. Independence means that one trial doesn"t in uence or change the outcome of another. The lr relative frequency of repeated, independent events eventually produces the true relative frequency as the number of trials increase.
