Define the following: a) random variable b) probability distribution c) expected value
Q: The following probability distributions of job satisfaction scores for a sample of information…
A: From the provided information,The probability distribution is as follow:Job satisfaction…
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Q: The contingency table below shows the results of a survey of video viewing habits by age. Video…
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Q: The following probability distributions of job satisfaction scores for a sample of information…
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Q: The following probability distributions of job satisfaction scores for a sample of information…
A: By the given data table, we have
Q: The contingency table below shows the results of a survey of video viewing habits by age. Viewer…
A: Video Viewing Platform Preferred Row total Age Mobile/laptop tv screen 18 to 34 35 38 73…
Q: The contingency table below shows the results of a survey of video viewing habits by age. Viewer…
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Q: The contingency table below shows the results of a survey of video viewing habits by age. Viewer…
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Q: The contingency table below shows the results of a survey of video viewing habits by age.…
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Q: The contingency table below shows the results of a survey of video viewing habits by age.…
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Q: The contingency table below shows the results of a survey of video viewing habits by age video…
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Q: The contingency table below shows the results of a survey of video viewing habits by age. Video…
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Q: 1) Using the above data table, find and report the following probabilities: The probability that one…
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Q: The contingency table below shows the results of a survey of video viewing habits by age. Viewer…
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A: From givenThe probability of a market rise = 0.7The probability of a market decline = 0.3
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- Given the following probability distribution, what is the expected value? Outcome P(Outcome) 20 0.15 1 0.15 19 0.10 2 0.09 17 0.51The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform Preferred Viewer Age Mobile/Laptop Device TV Screen Row Total 18–34 30 33 63 35–54 13 13 26 55+ 3 8 11 Column Total 46 54 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18–34. (Round your answer to 2 decimal places.) Probability (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.) Probability (c) Percentage of viewers who are 18–34 and prefer videos on a mobile or laptop device. Percentage of viewers % (d) Percentage of viewers given they are 18–34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage of viewers % (e) Percentage of viewers who are 35–54 or prefer videos on a mobile or…Question: Let H be the discrete r.v. that represents the number of heads obtained when a fair coin is flipped four times. What is the expected value of this distribution?
- Given the following probability distribution, what is the expected value? Outcome P(Outcome) 11 0.11 4 0.15 5 0.14 14 0.13 3 0.47The contingency table below shows the results of a survey of video viewing habits by age. Video Viewing Platform Preferred Viewer Age Mobile/Laptop Device 18-34 TV Screen Row Total 37 25 11 35-54 62 11 55+ 22 6. 10 16 Column Total 54 46 100 Find the following probabilities or percentages: (a) Probability that a viewer is aged 18-34. (Round your answer to 2 decimal places.) Probability (b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.) Probability (c) Percentage of viewers who are 18-34 and prefer videos on a mobile or laptop device. (d) Percentage of viewers given they are 18-34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage of viewers Percentage of viewers Next > 14 of 19 ( Prev tion here to search ... ...c) Three coin are tossed. Write down the sample space hence copy and complete the table of probabilities distribution P(X = x) of X = 0, 1, 2, and 3 heads below hence find the expected value E(X) x p(x) 0 1338 8 2 3
- A) Grace Floral shops sells several types of roses for all occasions. It is known that 43% of the tosses that is sold by Grace Floral Shop are Eden Roses. 12 roses are ordered to put in a bouquet. (I) Define the random variable for this situation and list its values. (ii) Stating it's parameter(s), what is the probability distribution of this variable? (iii) state the conditions that influence your choice of distribution. (iv) Calculate the probability taht ay most 2 of the roses were Eden Roses. B) The number of telephone calls comin into Grace Floral Shop to place orders averages 3 per minute. (I) Define the random variable in this situation and list its values. (ii) Stating its parameter(s) what is the probability distribution of its variable? (iii) Compute the probability that 5 calls will arrive per minute. (iv) Compute the probability that 3 or more calls will arrive in a 3-minute interval?The following probability distributions of job satisfaction scores for a sample of information systems (IS) senior executives and middle managers range from a low of 1 (very dissatisfied) to a high of 5 (very satisfied). Job Satisfaction Score 1 2 3 4 5 Probability IS Senior Executives 0.06 middle managers 0.09 0.04 0.43 0.38 IS Middle Managers 0.03 0.10 0.13 0.46 0.28 (a) What is the expected value of the job satisfaction score for senior executives? (b) What is the expected value of the job satisfaction score for middle managers? (c) Compute the variance of job satisfaction scores for executives and middle managers. executives (d) Compute the standard deviation of job satisfaction scores for both probability distributions. (Round your answers to two decimal places.) executives middle managers (e) Compare the overall job satisfaction of senior executives and middle managers. The average score for senior executives is ---Select-- the middle managers score. The standard deviation for…
