# Appendix

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## Document Summary

Population (large group of people you re trying to understand) Sample (subset of the population, (same age, breakdown of gender, race religion, economic situation as the pop. ) Descriptive - describes the data, communicate the overall pattern. Inferential findings are likely to be found in the pop. Plot how often the value of the dependent variable occurs. Center of the distribution ( mean-average score median-middle # mode-frequently repeating #) Mean : m= { (xi)/n (advantages most people understand it, used in other statistical equations. Disadvantages : mean is strongly influenced by extreme scores outliers) Median advantages: not influenced by outliers, disadvantages : not used by other statistical equations. Mode- advantage: not influenced by outliers, disadvantages: least precise measure of the center of the distribution, can t be used in other statistical equations. # value that reps how wide the distribution. Range numerical distance from the lowest to highest score (advantages: easy to calculate, easily understood, disadvantages: strongly influenced by outliers.

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