2025Q1(xv)Measure of Central Tendency (Mean, Median, Quartiles and Mode)

Assertion-ReasonEasy1 mark

Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)

Assertion (A): The mean of first 9 natural numbers is 4.5. Statement 2: Mean = Sum of all observations / Total number of observations

Topic: Mean / median / mode / quartiles

Previous-year question practice database

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Pick an option and check your answer. The full worked answer is below either way.

Choose an answer

(A) is true, (R) is false.(A) is false, (R) is true.Both (A) and (R) are true, and (R) is the correct reason for (A).Both (A) and (R) are true, and (R) is the incorrect reason for (A).

Answer

Exam answer

(b) Assertion false; Reason true.

Explanation

Mean of first 9 natural numbers = (1+…+9)/9 =45/9=5, not4.5. The mean formula stated is correct.

In words

Assertion false; Reason true.

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