Question 15 ptsSuppose that you invest an equal amount of money in each of five Internet business ventures. Let the random variable X count the number of these fiveinvestments that will be successful. The Probability Distribution for this random variable, X, is given below. What is the mean of this random variable XP(X)0.00210.02920.1320.30940.3600.168O 3.60О 3.35O 3.40O 3.50NextNo new data to save. Last checked at 4:55pmSubmit Quiz81°F SunnyASUS

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Answered: Question 1 5 pts Suppose that you…

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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Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55 P(Instant Message) = 0.24 P(Text Message) = 0.15 Is this model a probability distribution? A. Yes. B. No. C. Maybe.
Many fire stations handle emergency calls for medical assistance as well as calls requesting firefighting equipment. A particular station says that the probability that an incoming call is for medical assistance is 0.84. This can be expressed as P(call is for medical assistance) = 0.84. (a) Give a relative frequency interpretation of the given probability. O Eighty-four percent of all calls to the station are for medical assistance. O None of the calls to the station are for medical assistance. O Sixteen percent of all calls to the station are for medical assistance. O All calls to the station are for medical assistance. O Fifty percent of all calls to the station are for medical assistance. (b) What is the probability that a call is not for medical assistance?
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Question # 2 If P(B) = 0.05, P(A|B) = 0.70 and P(A|Bº) = 0.30, find P(B|A). Question # 3 Two fair dice are thrown. i. Given that a total score of al least 10 is obtained, what is the probability of at least one six occurring? ii. Consider the absolute difference, D, between the scores of the two dice. Provide the probability distribution of D.
A group of people were asked if life exists elsewhere in the galaxy. 209 responded "Yes", and 227 responded "No". Find the probability that if a person is chosen at random, the person believes life exists elsewhere in the galaxy. Probability = (Round to 4 decimal places) %3D Submit Question 17,123 4 6. NOV 1 tv 16 MacBook Air 80 000 000 F6 F7 F4 F5 F3 (8)
USA Today reported that approximately 25% of all state prison inmates released on parole become repeat offenders while on parole. Suppose the parole board is examining five prisoners up for parole. Let x = number of prisoners out of five on parole who become repeat offenders. x 0 1 2 3 4 5 P(x) 0.213 0.370 0.224 0.174 0.018 0.001 (a) Find the probability that one or more of the five parolees will be repeat offenders. (Round your answer to three decimal places.) (b) Find the probability that two or more of the five parolees will be repeat offenders. (Round your answer to three decimal places.)(c) Find the probability that four or more of the five parolees will be repeat offenders. (Round your answer to three decimal places.)(d) Compute ?, the expected number of repeat offenders out of five. (Round your answer to three decimal places.)? = prisoners(e) Compute ?, the standard deviation of the number of repeat offenders out of five. (Round your answer to two decimal places.)? =…
A food marketing institute found that 33% of households spend more than $125 a week on groceries. Assume the population proportion is 0.33 and a simple random sample of 476 households is selected from the population. What is the probability that the sample proportion of households spending more thatn $125 a week is less than 0.36? There is a _____________probability that the sample proportion of households spending more thatn $125 a week is less than 0.36. Round the answer to 4 decimal places.
For families with 5 children, let XX be the number of children with Genetic Condition B. Can the following table be a probability distribution for the random variable XX? xx P(x)P(x) 1 0.2486 2 0.347 3 0.182 4 0.0226 5 0.3492 yes no
A factory uses a specific machine to produce pieces. From previous data, we know that 97% of the time the machine is set up correctly. If this is the case, it produces 95% acceptable (non-defective) pieces. However, if it is not set up correctly, it produces only 40% of acceptable pieces. Q22 A piece produced by the machine is selected. What is the probability that the selected piece is non-defective? Your answer should be in % and have two digits after the period. So, if your answer is 50.002%, enter 50.00. Your Answer:
Which of the following is an example of a discrete random variable? The amount of time it takes for a worker to complete a complex task. The monthly electric bill for a local business. The number of people eating at a local cafeteria between noon and 2:00 p.m.
USA Today reported that approximately 25% of all state prison inmates released on parole become repeat offenders while on parole. Suppose the parole board is examining five prisoners up for parole. Let x = number of prisoners out of five on parole who become repeat offenders. x 0 1 2 3 4 5 P(x) 0.202 0.387 0.215 0.164 0.031 0.001 (a) Find the probability that one or more of the five parolees will be repeat offenders. (Round your answer to three decimal places.)1 How does this number relate to the probability that none of the parolees will be repeat offenders? These probabilities are the same.This is twice the probability of no repeat offenders. This is the complement of the probability of no repeat offenders.This is five times the probability of no repeat offenders.These probabilities are not related to each other.
British Travel Agency has asked a junior manager to investigate flight delays during the week before Christmas at Heathrow Airport. The random variable X is the number of flights delayed per hour. The results are shown in the following table. x 0 1 5 2 3 4 6 7 8. p(x) 0.10 0.08 0.07 0.15 0.12 0.08 0.10 0.12 0.08 0.10 a) Show that the probability distribution is well defined and derive the cumulative probability distribution. b) Find the probability that there would be three through seven (inclusive) delayed flights per hour? c) Find the mean and variance of flights delayed per hour.

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