Biology 2244A/B Chapter Notes - Chapter 9: Genetic Linkage, Standard Deviation, Simple Random Sample
2 Nov 2016
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Understanding the definitions of : random phenomenon, sample space, event, probability model. The average cost of a typical weekend date is a population mean. Take a simple random sample of size n = 50, compute the x (bar) mean and infer to all students. If we get a simple random sample would we we get the same value for x(bar). The laws of probability govern the behavior of sample statistics. A probability model shows all the possible outcomes of a random phenomenon and the probability of each outcome occurring. Chance behavior is unpredictable in the short run but has a regular and predictable pattern in the long run after many repetitions and this is the idea of probability. E. g. in tossing a coin, the proportion of tosses that produce heads is quite variable at first. As we make more and more tosses the proportion of heads for both trials gets to.
