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Class 12 Probability · Assertion Reason1 Marksconditional_probability

Class 12 Maths · Probability · Assertion Reason #24

Assertion (A): For two independent fair coins, P(two heads|at least one head)=1/3. Reason (R): For events E,F with P(E)>0, P(F|E)=P(E∩F)/P(E).

✅ Step-by-Step Solution

Final Answer: Option (A): Both A and R are true, and R correctly explains A.
  1. Among HH,HT,TH only HH has two heads; conditional probability is (1/4)/(3/4)=1/3. The reason gives this rule.

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