STA 119 Lecture Notes - Lecture 3: Level Of Measurement, Relative Risk, Standard Deviation

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Yes/no questions: attribute data, nominal data, ordinal data. A person has a specific injury vs. a person does not have a specific injury. The voter will vote for our candidates vs. will not: nominal data (categorical data): similar to binary, not numbers, except more than 2 possibilities for each data entry. Cancer type: lung, skin, breast, liver, etc: ordinal data: similar to nominal data, not numbers, but there is some natural order to the data. Education: no hs diploma - hs diploma - college diploma - advanced degree. Manufactured item: needs no repairs - needs repair - needs to be scrapped. Letter grades on an exam or in a course. Stage of cancer: i, ii, iii, iv: discrete data (numbers or numerical data): discrete data consists of measured data that can only take on limited set of values. Often times our discrete data takes on the form of a count and therefore is sometimes count data.

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