A. Find the mean, variance, and standard deviation of the following probabilitydistribution by completing the tables below.P(X)X • P(X)X — и(х — и)2(х — и)2 . Р(Х)1.338.13182.P(X)X ·P(X)X — и(х — и)2(х — и)2 - Р(х)104103610310110102.

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Answered: A. Find the mean, variance, and…

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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Find the expected value E(X) of the following data. Round your answer to one decimal place. x P(X = x) Show Transcribed Text -6 -5 0.2 0.2 -4 -3 -2 0.2 0.1 0.3
Find the mean of the following probability distribution? P(x) 0.1605 1 0.2848 2 0.0206 3 0.2536 4 0.2805 Use the round-off rule for measures of center and variation, mean = which is one place more than the x-values.
The table shows the probability distribution of the number of days (x) to complete a construction project by a contractor. x f(x) 1 0.104 2 3 0.312 4 0.240 5 0.098 6 0.017 13 If you doubled each number of days to completion in the Days (x) column, the variance of days to completion will be _________. a 5.710 b 4.758 c 3.965 d 2.855
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Q.7 For an exponential distribution fx(x; p) = (ue H, x20 %3D e. w. where u > 0 Write (Don't derive) (a) Mean (expected value), i.e. E(X). (b) Standard deviation, i.e. S.D. (X). (c) Moment generating function, i.e. Mx(t). (d) Cumulative distribution function (cdf), Fx(x). of Nizv
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A survey of almost 44,000 two-child families yielded the accompanying table. The probability distribution of x, the number of boys in a two-child family is given below. Find E(x) and give a practical interpretation of its value. Gender Configuration Proportion D Girl-girl (GG) Boy-girl (BG) Girl-Boy (GB) 0.215 0.267 0.256 P(x) 0.215 0.523 0.262 Boy-boy (BB) 0.262 Choose the correct answer below and fill in the answer box to complete your choice. (Round to three decimal places as needed.) O A. If a very large number of households were sampled, on average, there would be E(x) = boys. O B. If a very large number of two-child households were sampled, on average, there would be E(x) = boys. of getting a family with a boy. %3D O C. If a very large number of two-child households were sampled, there would be a probability of E(x) = O D. In the sample of 44,000 households, each household had E(x) = boys.

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A. Find the mean, variance, and standard deviation of the following probability distribution by completing the tables below. X• P(X) (X – 4)² (X – µ)² · P(X) 1. P(X) 3 8 13 18 INM INN IN-IN