Answer
(a)
Greatest sample standard deviation: (ii)
Least sample standard deviation: (iii)
(b) Same mean/median, different standard deviation.
Work Step by Step
(a) Greatest sample standard deviation: (ii)
Data set (ii) has more entries that are farther away from the mean.
Least sample standard deviation: (iii)
Data set (iii) has more entries that are closer to the mean.
(b) The three data sets have the same mean and median, but have a different mode and standard deviation.
