hwk3 - Stat 100 -Intro Probability Homework 3 J. Sanchez...

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Stat 100 -Intro Probability Homework 3 J. Sanchez UCLA Department of Statistics Instructions (1) No late homework accepted under any circumstances. (2) Must hand in in person to Prof. Sanchez in lecture. No email, mailboxes, fax or other way of turning it in will be allowed. Please, do not give it to the TA. If you need to turn in your homework early, please contact Prof. Sanchez and make arrangements with her. (3) Write your name, ID, Hwk number, date and your section on the upper right corner. (4) Must show work for full credit (5) Must answer problems in the order given. (6) Staple your homework and write in dark pencil or pen. The homework must be clearly written. If it is not possible to read your hand writing, your homework will get 0 points. Exercises to turn in Problem 1. A population of 50 registered voters contains 30 in favor of Proposition 134 and 20 opposed. An opinion survey selects a random sample of 4 voters from this population, as follows. One person is picked at random from the 50 voters, then another at random from the remaining 49, and so on, till 4 people have been picked. (a) What is the probability that there will be no one in favor of 134 in the sample? (b) What is the probability that there will be at least one person in favor? (c) What is the probability that exactly one pro 134 person will appear in the sample?
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hwk3 - Stat 100 -Intro Probability Homework 3 J. Sanchez...

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