EXST 2201 Lecture : EXST 2201 Chap 1 Notes
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End 01. 0 - overview (10 pages; revised 08/06/12) Defn: statistics the science of collecting, organizing and summarizing, and. ) also known as the science of data. Probabilistic data: statistics is not the science of chaotic data (data that has absolutely no pattern). If there is absolutely no pattern, then it is impossible to relate one set of data to another (the important function of inferential statistics). Probabilistic data has the characteristic of its value being unknown for one observation, but its value for many observations is known. For example, i do not know if the next coin flip will be heads or tails, but i do know that in 10,000 coin flips there will be about 5,000 heads and 5,000 tails. Probabilistic data is very well characterized in the long run, but is unknown in the short run. Statistics can be broken down into techniques from three areas; sampling, descriptive.
