Probability
NCERT Class 12
CBSE
Grade 12
Question:
If $P(A) = 0.7, P(B) = 0.9$ and $P(A \cap B) = 0.63$, check if $A$ and $B$ are independent.
Step-by-Step Solution
$P(A)P(B) = 0.7 \times 0.9 = 0.63 = P(A \cap B)$. [1.0 Mark]
$A$ and $B$ are independent. [1.0 Mark]
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🎯 Official CBSE Marking Scheme:
Evaluating product $P(A)P(B)$: 1.0 Mark
Concluding $A$ and $B$ are independent: 1.0 Mark
Correct Answer:
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