Question: You should have also created a Row Median column representing the median of Rolll - Roll10 for each student. What is the mean of the

You should have also created a Row Median column representing the median of Rolll - Roll10 for each student. What is the mean of the Row Median (sample medians) column? b. Is this estimate centered about the parameter of interest (mean/median in question 18)? What is the standard deviation of the Row Median (sample medians) column? d. Is there a small amount of variability in this estimate
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