(I the Standard Deviation the Positive Square Root of the Variance

Multiple Choice

(i. The standard deviation the positive square root of the variance. (ii) The capacities of several metal containers are: 38, 20, 37, 64, and 27 litres. The range in litres is 44.
(iii) The sum of the deviations of each value from the mean equals zero.

A) (i) , (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements, but not (i) .
E) (i) , (ii) and (iii) are all false statements.