Let X be a binomial randomvariable with mean 1 and variance3. The probability that X takes the4value of 3 is:64(a) 3/4(c) 27(b)음16(d) 23/3644

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Answered: random Let X be a binomial variable…

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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5.4.15 The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n= 63, find the probability of a sample mean being less than 20.6 if µ = 21 and o = 1.22. Click the icon to view page 1 of the standard normal table. A Click the icon to view page 2 of the standard normal table. For a sample of n= 63, the probability of a sample mean being less than 20.6 if µ = 21 and o = 1.22 is (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. Clear All 1 part remaining Tune here to search %23
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Prob-1 Probability that cars have been assembled in a particular plant as follows: P(plant1)=20%, P(plant2)=24%, P(plant3)=25%, P(plant4)=31% Warranty claim rate of cars manufactured by plant3: 6%. If 352,500 of cars do not claim warranty in plant3; compute total number of cars manufactuted by all plants in a year? Sol:
The probability distribution below is for the random variable X = the number of credits taken by a randomly selected first-year student at a large state university. Credits 14 15 16 17 Probability 0.05 0.65 0.20 0. 10 Show that the probability distribution of X is valid.
76190 75496 19. Find the probability of drawing a black face card and a diamond when two cards are drawn (without replacement) from a standard deck of cards. 31 64 31 34 20. What is the mean of the data? XX文 XXX X XX 1/2
A student takes a test in which they have to indicate whether each of n statements is true or false. The student knows nothing at all about the subject matter and guesses the answers randomly. Let X denote the number of correct answers (a) Write down expressions for the expectation, E(X), and the variance, var(X). Suppose the student gets three marks for every correct answer but loses one mark for every incorrect answer. Let Y denote the student’s total score. (b) Show that Y = 4X −n. (c) Write down expressions for E(Y ) and var(Y ).
If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was not intoxicated or the driver was not intoxicated
Fill in the P(X=x)values to give a legitimate probability distribution for the discrete random variable X, whose possible values are −5, −1, 2, 5, and 6. Value x o fX P(X=x) −5 0.12 −1 0.24 2 5 0.13 6
A recent poll has suggested that 61 % of Canadians will be spending money - decorations, halloween treats, etc. - to celebrate Halloween this year. 23 Canadians are randomly chosen, and the number that will be spending money to celebrate Halloween is to be counted. This count is represented by the random variable X. Part (a) Compute the probability that 16 of these Canadians indicate they will be spending money to celebrate Halloween. P(X16) = (use four decimals in your answer) Part (b) Compute the probability that between 7 and 16 of these Canadians, inclusive, indicate they will be spending money to celebrate Halloween. P(7< X < 16) = (use four decimals in your answer) Part (c) How many of the 23-Canadians randomly chosen would you expect to indicate they will be spending money to celebrates Halloween? Compute the standard deviation as well.. E(X) = 4x = SD(X)=ox= (use two decimals in your answer) (use two decimals in your answer) Part (d) Compute the probability that the 14-th…
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A fair coin is tossed twice. 4 points for heads in both shots,2 points are earned if one heads one tails, and 12 points are lost if no heads occur. Since the random variable X is the points earned, what is the value of VAR (X)?

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random Let X be a binomial variable with mean 1 and variance 3. The probability that X takes the 4 value of 3 is: