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Unformatted text preview: University of the Philippines – Diliman Department of Industrial Engineering and Operations Research IE 143 Short Quiz Short Quiz 1 Class Recitation: 11 over 10 from a selection of 20 questions 1. If A and B are exhaustive events, and P(A) = 0.8, what is P(B)? 2. If A and B are exhaustive events, and P(A) = 0.8, what is P(A B)? 3. If P(A) = 0.4, P(B) = 0.3, and A & B are mutually exclusive, what is P(A’ B)? 4. If P(A) = 0.4, P(B) = 0.3, and A & B are independent, what is P(A’ B)? 5. A box contains 3 gold balls and 1 silver ball. An identical box contains 2 gold balls and 2 silver balls. A third box has 1 gold ball and 3 silver balls. One of the boxes is selected at random and a ball is drawn blindly from the selected box. If the ball is gold, find the probability that the selected box is the first one. 6. A box contains 3 gold balls and 1 silver ball. An identical box contains 2 gold balls and 2 silver balls. A third box has 1 gold ball and 3 silver balls. One of the boxes is selected at random and a ball is drawn blindly box has 1 gold ball and 3 silver balls....
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 Spring '11
 a
 Operations Research, Probability, Probability distribution, Probability theory, gold balls

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