Which of the following is not a characteristic of Index number

(A) They are specialized averages

(B) They measure the effect of change over a period of time

(C) It follows the concept of probability

(D) They are used to feel the pulse of the economy

(E) Cramer Rule is a part of index number

Choose the correct answer from the options  given below :

(C), (E) only

The correct answer is Option (2) → (C), (E) only

(C) Index numbers do not deal with probability, they are deterministic statistical tool.

(E) Cramer's rule is a method used in solving linear equations and has no direct relation to index numbers.