PSY 291 Study Guide - Final Guide: Alternative Hypothesis, Binomial Theorem, Mutual Exclusivity

• School: University of Miami
• Department: Psychology
• Course: PSY 291
• Professor: Elizabeth A. Simpson

Document Summary

Probability- the expected relative frequency of a particular outcome. Probability can be viewed in 2 ways: a priori- the classical viewpoint, can be solved from reason alone w/o data collection, a posteriori- the empirical viewpoint, can be solved only after data collection. Random sampling is important because it allows us to generalize from the sample to the population. This is because it: allows application of the laws of probability, results in a sample that should be representative of the population. Sampling with replacement- each member of the population selected for the sample is returned to the population before the next member is selected: used a lot with inferential statistics. Sampling without replacement- the members of the sample are not returned to the population before the subsequent members are selected: use this method for an experiment because the same person cannot participate in the experiment twice.