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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 2 Reviewer 1. If a fair coin was tossed 10 times what is the probability that the outcome will have exactly 3 heads? What is the expected number of heads in the experiment? 2. Brosia is about to start a survey by asking people she randomly meets whether they are left or right handed. Assuming 7% of the population is lefthanded, what is the probability that her first lefthanded subject is the fifth person she asks? What is the expected number of people she needs to ask for her to meet one left handed person? 3. What is the probability of getting exactly 5 spades and 4 hearts if you draw 13 cards randomly (without replacement) from a standard deck of 52? 4. A manufacturing firm receives a lot of 100 parts, of which 5 are defective. Suppose that the firm accepts all 100 parts if and only if no defective ones are found in a sample of 10 parts randomly selected for...
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This note was uploaded on 05/19/2011 for the course IE 2 taught by Professor A during the Spring '11 term at University of the Philippines Diliman.
 Spring '11
 a
 Operations Research

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