STAT 263 Lecture Notes - Lecture 1: Box Plot, Confirmation Bias, Interquartile Range
17 Jan 2017
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Document Summary
Lurking variable: a variable that has an important effect on the relationship among the variables in a study, but is not included among the variables studied. Operational definition: clear, concise definition of a measure- when applied to data collection. Descriptive statistics: use of numerical and graphical methods to summarize the information revealed in data and present it in a convenient form. Does not infer anything, generalizes beyond itself (pg 2) government uses census counts the population of us in 1990 and 2000 we can calculate the percentage growth and this will still be descriptive statistics. However, we cannot use the population in 1990 and 2000 to calculate the population in 2020 this goes beyond the scope of. The data and is not descriptive statistics bc descriptive statistics does not infer. Fun fact: omg a census is a collection of data from a whole population instead of a sample.
