I a Parameter Is a Measurable Characteristic of a Sample

i. A parameter is a measurable characteristic of a sample.
ii. The weighted mean is the nth root of n observations.
iii. A statistic is a measurable characteristic of the population.

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.