i. A random variable is assigned numerical values based on the outcomes of an experiment.

ii. A random variable is a quantity resulting from a random experiment that can assume different values by chance.

iii. The mean of a probability distribution is referred to as its expected value.

Multiple Choice

A.(i), (ii), and (iii) are all correct statements.

B.(ii) and (iii) are correct statements but not (i).

C.(i) and (iii) are correct statements but not (ii).

D.(i), (ii), and (iii) are all false statements.

E.(i) is a correct statement but not (ii) or (iii).