HTHSCI 2S03 Lecture Notes - Lecture 3: Frequency Distribution, Cumulative Frequency Analysis
29 Apr 2016
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Document Summary
Statistics: the science of collecting, displaying, and analyzing data. These data (correct form) multiple data in a datum. Variable name: corresponds to various labels: e. g. sex 1 gender of respondent, variable value value of 2 for anyone that"s a female to represent their gender. Bedmas: order of operations, set of rules with complex calculations. Exponents: power how many times you multiply a number by its self, base and exponent 3 (base) * 2 (exponent) = 9. Calculating and summing squared values: squared value of given variables, talking about deviations don"t want any negative numbers, deviation values = 0 (when squared negative #s, sigma = sum of (everything that follows sigma is to be summed) Roots: value to 0. 5, when multiplied by itself equals to the value interested in. 2 distinguishing variables: discrete vs continuous, level of measurements. Discrete/ categorical: number represents category or status.
