Test Index

Probability

Question : 22 of 127

Marks: +1, -0

A

B

Solution:

Concept:

The Addition Theorem gives the probability of the union of two events.

Explanation:

For any two events

A

and

B

, the probability of

A

B

(union) is the sum of their individual probabilities minus the probability of their overlap (intersection).

This avoids double‑counting the common outcomes.

Thus,

P(A \cup B) = P(A) + P(B) - P(A \cap B)

Answer:

Option C:

P(A \cup B)=P(A)+P(B)-P(A \cap B)

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