Biology 2244A/B Chapter Notes - Chapter 1: Sampling Bias, Fax, Treatment And Control Groups
15 Mar 2015
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Statistics: observations (such as measurements, genders, survey responses) that, is a collection of methods for planning experiments, obtaining data, and then organizing, summarizing, analyzing, interpreting, presenting and drawing conclusions based on data. Population to be studied: complete collection of all elements (scores, people, measurements etc. , collection is complete in sense that it includes all subjects to be studied, ex. Statistic: collection of data from every member of the population, sub-collection of members selected from part of a population, ex. 1000 adult americans: measurement describing some characteristic of a population, ex. average weight of an entire population of dish, measurement describing some characteristics of a sample, ex. average weight of a sample of 500 fish. Consist of numbers representing counts or measurements. Temperature (can"t say that 20 degrees is twice as hot as 10 degrees) Discrete: countable number of possibilities, ex. Discrete: countable number of possibilities, ex. number of cans of cola. Continuous: infinite number of possibilities, ex.
