MathematicsMedium89×since 2002Q5484Let the mean of 6 observations 1,2,4,5,x1,2,4,5, \mathrm{x}1,2,4,5,x and y\mathrm{y}y be 5 and their variance be 10 . Then their mean deviation about the mean is equal to :A103\frac{10}{3}310B83\frac{8}{3}38C73\frac{7}{3}37D3Check answerSkip