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STA2023: Summary Statistics Exam Questions And Answers ( Verified And Updated )

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STA2023: Summary Statistics Exam Questions And Answers ( Verified And Updated ) A number that arises from a set or sample of data is a what? - answerStatistic R = range = ? - answermax - min IQR = Interquartile Range = ? - answerQ3 - Q1 Lower Fence = ? - answerQ1 - (1.5 * IQR) Upper Fence = ? - answerQ3 + (1.5 * IQR) x-bar = ? - answerAverage/mean Σx = ? - answerTotal value Σx^2 = ? - answerTotal squares Sx = ? - answerSample standard deviation σx = ? - answerPopulation standard deviation n = ? - answerSample size minX = ? - answerMinimum Q1 = ? - answer1st quartile Q2/Med = ? - answer2nd quartile/median Q3 = ? - answer3rd quartile maxX = ? - answerMaximum What are the four shapes of a histogram? - answerUniform, bell-shaped, right-skewed, left- skewed Would a right-skewed histogram be heavier on the left, or the right? - answerLeft These types of graphs allow us to compare counts or percentages among classes of data. - answerHistograms

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