Question:
If A and B are mutually exclusive events and if P(B)=13, P(A B)=(13)/(21), then P(A) is equal to:
If A and B are mutually exclusive events and if P(B)=13, P(A B)=(13)/(21), then P(A) is equal to:
Show Hint
Mutually exclusive events never occur together.
Updated On: Mar 18, 2026
- 17/21
- 4/7
- 2/7
- 5/7
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Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Mutually exclusive rule. P(A B)=P(A)+P(B)
Step 2: Substitution. P(A)=(13)/(21)-(1)/(3)=(2)/(7)
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