The probability of occurrence of event a is 0.1 and that of event b is 0.2. the events are mutually exclusive. what is the probability of occurrence of both a and b?
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P (a ) = 0.1
P (b) = 0.2
P ( a∪b ) = P ( a ) + P ( b) -P ( a ∩ b )
P ( a ∪ b) = 0.1 + 0.2 - 0.02
P ( a ∪ b) = 0.3 - 0.02
P ( a ∪ b) = 0.28
P (b) = 0.2
P ( a∪b ) = P ( a ) + P ( b) -P ( a ∩ b )
P ( a ∪ b) = 0.1 + 0.2 - 0.02
P ( a ∪ b) = 0.3 - 0.02
P ( a ∪ b) = 0.28
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