[STAT 2510] - Midterm Exam Guide - Ultimate 13 pages long Study Guide!
7 Feb 2017
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Statistics science or practice of the collection, analysis, and interpretation of data. Descriptive stats methods for organizing and summarizing info. Organizing summary charts construction of graphs, charts, and tables and calculation of various descriptive measures such as average, variation, and percentages. Population everything you are considering using in a statistical study. Sample part of population from which info is obtained. Census obtaining info from every single member of population (timely and expensive) Simple random sample each sample of a given size is equal to be the one obtained. Two types: simple random sampling with replacement. Each item can be chosen more than once: simple random sampling without replacement. Probability sampling technique giving all members of population equal chance of selection. Variables characteristic that varies from one person or thing to another. Examples eye color, gender, blood type, and zip code. Two types of quantitative: discrete possible values can be listed; only finite # of possibilities, counts, ex.
