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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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The distribution function for a random variable X is F (x) = {-e-", 20 x > 0 to x 2? e 2 e -5 -4 e
Help because both are wrong Thanks
A technician suspect that the number of computer errors recorded per day in the LAN follows a Poisson distribution with a mean of 2 errors per day. Record of the number of errors per day for the past 260 days are shown in table below. Number of Number of Pr(X = x) E (0; – e;) Errors per days ei day 77 1 90 2 55 3 30 4 or more a. Test the hypothesis that the number of computer errors per day has the Poisson distribution with mean 2 at the 5% significance level. b. Find an approximate value of the p – value for the test statistics in (a). 8
Question * Given X be the life time of a bulb having a probability density function f(x) =-e for x>0 and 0 elsewhere. The mean life time of the bulbs is equal to: %3D O 1/2 O None of these O 1/4 Question* Let X and Y be two independent continuous random variables with marginal distribution
9/10 Question * If the probability density function of random variable X is given by: - 1)(2- x), 0, 15 xS 2; otherwise. The value of k is equal to: None of these 3/2 7. 6. Question *
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Plz provide answer for part a asap (a) Bernoulli process: i. Draw the probability distributions (pdf) for X ∼ bin (8, p) (x) for p = 0.25, p = 0.5, p = 0.75, in their respective diagrams. ii. What kind of effect has a higher value for p on the graph, compared to a lower value? iii. You must hit a coin 8 times. You win if there are exactly 4 or exactly 5 coins, but otherwise lose. You can choose between three different coins, with pn = P (coin) respectively p1 = 0.25, p2 = 0.5, and p3 = 0.75. Which of the three coins gives you the highest probability of winning?

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Font 6. Paragraph P Suppose that a random sample X is given by a probability density function (B-2), 0