The following joint frequency distribution table shows responses from a sample of 264 unionized employees on how their union president handled a recent labour action. Employees were categorized by age group and by their level of approval. Age Group Under 25 25 to 40 Over 40 Total Approve Disapprove 15 36 31 39 106 36 45 96 Indifferent 21 15 26 62 Report answers accurate to 4 decimal places. Do not convert to percent. 1. What is the probability that a randomly selected employee: a. was indifferent or disapproved? 0.0000 b. was in the 25 to 40 age group and was indifferent? 0.0000 Total 72 82 110 264

The following joint frequency distribution table shows responses from a sample of 264 unionized employees on how their union president handled a recent labour action. Employees were categorized by age group and by their level of approval. Age Group Under 25 25 to 40 Over 40 Total Approve Disapprove 15 36 31 39 106 36 45 96 Indifferent 21 15 26 62 Report answers accurate to 4 decimal places. Do not convert to percent. 1. What is the probability that a randomly selected employee: a. was indifferent or disapproved? 0.0000 b. was in the 25 to 40 age group and was indifferent? 0.0000 Total 72 82 110 264

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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7. Aaron purchased 19 video games. The defect rate for these types of video games is 1.8%. What is the probability that at least three of the video games he purchased are defective?
4. Six employees of a marketing firm had effectiveness ratings as follows: 0.72, 0.46, 0.59, 0.64, 0.81 and 0.76. Find the probability of selecting an employee with the indicated effectiveness rating.a. Greater than 0.75. b.Less than 0.75 but greater than 0.5. c. Greater than the mean. d. Not less than 0.9.
3. Assume that 12% of people are left-handed. You are trying to find 3 left-handed individuals to interview for an article. Assuming that everyone you approach is willing to be interviewed ... a) what is the probability that you need to approach exactly 6 people to find 3 left-handed individuals? b) what is the probability that you need to approach 6 or more people to find 3 left-handed individuals? c) what is the expected value of the number of individuals that you will need to approach to find 3 left- handed individuals?
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