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 Mar14 awarded Yearling Aug6 awarded Popular Question Jul2 awarded Curious Jun6 awarded Popular Question Mar14 awarded Yearling Oct19 awarded Nice Question Oct18 comment In high school statistics, why does it seem like equations come out of the sky Yes, we went over sample linear correlation coefficient and the linear regression algorithm. None of which was explained to the way I liked. Oct18 awarded Critic Oct18 asked In high school statistics, why does it seem like equations come out of the sky Oct18 asked Is there a derivation of the linear regression equation from statistical principles? Aug17 comment Statistics: Why do we use this convention when computing standard deviation Oh I see. Sorry I didn't think they would be equivalent in this case. Thanks. Aug17 asked Statistics: Why do we use this convention when computing standard deviation Aug17 accepted Statistics: What is the major difference amongst these three binomial variance formulas and how to derive them Aug17 comment Statistics: What is the major difference amongst these three binomial variance formulas and how to derive them thanks! I learned a lot from your explanations Aug17 asked Statistics: What is the major difference amongst these three binomial variance formulas and how to derive them Aug13 revised Statistics: Reconciling with different variance and expectation formulas deleted 121 characters in body Aug13 comment Statistics: Reconciling with different variance and expectation formulas I corrected the typo. Yes I do know that $X$ represents a random variable. Aug13 revised Statistics: Reconciling with different variance and expectation formulas edited title Aug13 revised Statistics: Reconciling with different variance and expectation formulas edited title Aug13 asked Statistics: Reconciling with different variance and expectation formulas