Explanation:
Fisher's ideal quantity index = √(Laspeyres quantity index × Paasche quantity index), mirroring the price index formulation to satisfy consistency tests for quantity measurement.
Assertion (A): Mailed questionnaire method is suitable when the informants are illiterate. Reason (R): Mailed questionnaire does not require any personal interaction. Choose the correct option:
A.A is true, R is false
B.A is false, R is true
C.Both A and R are true, and R is the correct explanation of A
D.Both A and R are true, but R is not the correct explanation of A
Explanation:
Mailed questionnaire is unsuitable for illiterates because they cannot read/write. The reason (no personal interaction) is true but does not make it suitable for illiterates; in fact, it makes it worse.
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