Same chapter3 marksDifficulty: Medium
Three coins are tossed. Find the probability of getting at least one head.
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3 marksDifficulty: Medium
If P(A) = 0.5, P(B) = 0.4 and P(A ∩ B) = 0.2, find P(A ∪ B).
Original Khojo Papers practice question — not from a past board paper.
Answer
0.7
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
P(A ∪ B) = P(A) + P(B) − P(A ∩ B) = 0.5 + 0.4 − 0.2 = 0.7.
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