Match List-I (Measurement scale) with List-II (Example of variable) and choose the correct answer from the options given below.

List I

i.Nominal

ii.Ordinal

iii.Interval

iv.Ratio

List II

a.Length of students

b.Time of day

c.Caste

d.Rank of military personnel

Ai-c, ii-d, iii-b, iv-a ✓ Correct

Bi-a, ii-b, iii-c, iv-d

Ci-b, ii-c, iii-d, iv-a

Di-d, ii-a, iii-b, iv-c

Correct answer: (A) i-c, ii-d, iii-b, iv-a

Explanation

Nominal pairs with caste, ordinal with rank of military personnel, interval with time of day, and ratio with length of students.

Caste names groups without any inherent order, so it is nominal.

Military rank orders positions without equal gaps, so it is ordinal.

Time of day has equal intervals but an arbitrary zero point.

Length has a true zero, so ratios of length are meaningful.

Only interval and ratio scales support the arithmetic mean.

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