Biology 2244A/B Study Guide - Midterm Guide: Block Design, Longitudinal Study, Frequentist Probability
24 Apr 2018
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A sampling design describes exactly how to choose a sample from the population. This is the idea of simple random sampling. Sampling notes: sampling with replacement - replace individual after using them. Could get the same individual more than once. Individual: object described by a set of data. They may be people, but they may also be animals, plants, or things. Sample: the part of the population from which we actually collect information. We use this to draw conclusions about the entire population. Population: the entire group of individuals (not necessarily people) in a statistical study about which we want information. Good sampling: probability sample = a sample chosen by chance, a sample chosen by chance allows neither favouritism by the sampler nor self-selection by respondents. Choosing a sample by chance mitigates bias by giving all individuals an equal chance to be chosen.
