Determine the probability of an event E given the following information.
 P(A) = 0.7
 P(B) = 0.5
 P(E|A) = 0.3
 P(E|B) = 0.4
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The probability of event E = P(E|A) * P(A) + P(E|B) * P(B) = 0.7 * 0.3 + 0.5 * 0.4 = 0.41.
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