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Class 12 Probability · Assertion Reason1 Marksprobability_distributions

Class 12 Maths · Probability · Assertion Reason #27

Assertion (A): If X=0,1,…,8 has probabilities a,3a,5a,…,17a, then a=1/81. Reason (R): The probabilities of a discrete probability distribution sum to 1.

✅ Step-by-Step Solution

Final Answer: Option (A): Both A and R are true, and R correctly explains A.
  1. The first nine positive odd integers sum to 81, hence 81a=1.

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