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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 left-handed, what is the probability that her first left-handed 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
- Operations Research