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GATE 2022 CE (CE2) – Question 23

Engineering Mathematics · Probability and Statistics: Probability, conditional probability, descriptive statistics · 1 mark · Multiple choice

Match attributes P: average city temperature (°C), Q: city name, R: population density, S: ease-of-business ranking with scales I: interval, II: ordinal, III: nominal, IV: ratio.

  1. (P)-(I), (Q)-(III), (R)-(IV), (S)-(II)
  2. (P)-(II), (Q)-(I), (R)-(IV), (S)-(III)
  3. (P)-(II), (Q)-(III), (R)-(IV), (S)-(I)
  4. (P)-(I), (Q)-(II), (R)-(III), (S)-(IV)

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Correct answer: (A) (P)-(I), (Q)-(III), (R)-(IV), (S)-(II)

Explanation

Celsius temperature has equal intervals but an arbitrary zero (interval). A city name is a category without order (nominal). Population density has a meaningful zero and meaningful ratios (ratio). A ranking supplies order without equal spacing (ordinal).

Thus **P–I,Q–III,R–IV,S–II (A)**.