Financial Risk Manager Part 1

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Events $A$ and $B$ are mutually exclusive events and $P(A) = 0.3$ while $P(B) = 0.5$ .
Calculate $P(A \cup B)$ .

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NNikitesh

Last updated: February 8, 2026 at 16:56

0.2

0.35

0.5

0.80

Explanation:

Since the events are mutually exclusive:

$P(A \cup B) = P(A) + P(B)$

$= 0.3 + 0.5 = 0.80$

Note: If the two events were not mutually exclusive, we would use the formula:

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

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