A random variable X has the following probability distribution :8.0·10-20.40.2

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Answered: A random variable X has the following…

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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Suppose z is a standard normal random variable. Find the z-value given probabilities:a. z-value with .10 in the upper tailb. z-value with .05 in the lower tailc. z-value with .05 in the upper tail
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The joint probability distribution of two random variables, X and Y, is given in the table below. Y=-3 Y=1 Y=3 Y=4 X=-4 0.15 0.01 0.00 0.17 X=-1 0.12 0.04 0.13 0.00 X=2 0.01 0.18 0.00 0.19 From the information in the table, calculate each of the following probabilities. Round your answers to two decimal places. (If necessary, consult a list of formulas.) (a) Given that X=-1, compute the probability that Y= 1. (b) Given that X> -1, compute the probability that Y<3. Explanation Check ALEKS - Britney Fri.
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enmath.com SCore: 27T S75 answered Question 4 Assume that 12 jurors are randomly selected from a population in which 81% of the people are Mexican- Americans. Refer to the probability distribution table below and find the indicated probabilities. P(x) 0+ 0+ 2. 0+ 3. 0+ 0.0004 0.0025 0.0123 0.0449 8 0.1195 0.2265 0.2897 11 0.2245 12 0.0798 Find the probability of exactly 6 Mexican-Americans among 12 jurors. P(x = 6) = Find the probability of 6 or fewer Mexican-Americans among 12 jurors. P(x < 6) = Does 6 Mexican-Americans among 12 jurors suggest that the selection process discriminates against Mexican-Americans? O no O yes Check Answer 12 étv MacBook Air 14567090
The accompanying table describes the random variable x, the numbers of adults in groups of five who reported sleepwalking. Complete parts (a) through (d) below. x P(x) 0 0.187 1 0.403 2 0.271 3 0.114 4 0.021 5 0.004 a. Find the probability of getting exactly 4 sleepwalkers among 5 adults. _______ (Type an integer or a decimal. Do not round.) b. Find the probability of getting 4 or more sleepwalkers among 5 adults. _________ (Type an integer or a decimal. Do not round.) c. Which probability is relevant for determining whether 4 is a significantly high number of sleepwalkers among 5 adults: the result from part (a) or part (b)? A. Since the probability of getting 4 or more sleepwalkers is the probability of the given or more extreme result, the result from part (b) is the relevant probability. B. Since the probability of getting 5 sleepwalkers…

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A random variable X has the following probability distribution : 4 5 0-1 0:2 0.4 02