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Statistical Analysis and Interpretation of Data: Central Tendency, Variability, Correlation, and Distributions

A study on fundamental statistical concepts such as central tendency, correlation, and data distribution.

Aiden Campbell
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Statistical Analysis and Interpretation of Data: Central Tendency, Variability,Correlation, and Distributions1.Which of the following are measures of central tendency? Select all that applya.meanb.medianc.moded.Variancee.standard deviationf.linear transformation2.Which of the following are measures of variability? Select all that applya.meanb.medianc.moded.variancee.standard deviationf.linear transformation3.Rachael and Peter are discussing how the mean value and variance affect thedistribution graph. As the following graph shows, there are two distributions: A and BPeter said that the distribution A has fatter tail because its has bigger standard deviationthan the distribution B. Rachael's answer is different:she thinks the distribution A has asmaller standard deviation than the distribution B.Who do you think is right?a.Peterb.Rachaelc.None of them are right. Distribution A and Distribution B have the same standarddeviation4.In a bell-shaped distribution, changing ___can make the distribution flatter (i.e. morecompressed); and changing ___ can shift the distribution to the left or to the right.a.Variance, mean

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Statistics

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