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

List I

i.Nominal

ii.Ordinal

iii.Interval

iv.Ratio

List II

a.Happiness level

b.Height

c.Blood group

d.Year of birth

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

Bi-c, ii-a, iii-d, iv-b ✓ Correct

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

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

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

Explanation

Nominal pairs with blood group, ordinal with happiness level, interval with year of birth, and ratio with height.

Nominal labels categories with no order, as in blood groups A, B, AB, O.

Ordinal ranks categories, so happiness level runs low to high without equal gaps.

Interval has equal gaps but an arbitrary zero, as calendar years illustrate.

Ratio has equal gaps and a true zero, so height allows meaningful ratios.

Only ratio scales permit statements such as twice as tall.

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