Find the expected value E(X) of a random variable X having the following probability distribution. (Enter your answer to two decimal places.)E(X) =-2х-61014Р(X %3D х)0.130.090.140.110.160.37

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A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) + P(x) (a) Find the mean of the number of ships that arrive at a harbor on a given day. X 10 0.31 11 12 13 0.15 0.1 0.12 14 0.32 (b) Find the standard deviation, o, of the number of ships that arrive at a harbor on a given day.
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0.035 0.063 0.182 0.430
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x P(x) 0 0.12 1 0.08 2 0.08 3 0.08 4 0.14 5 0.1 6 0.14 7 0.26 Find the variance of this probability distribution.Give your answer to at least 2 decimal places
variable with the following probability distribution. Value x of X P=Xx -20 0.10 -10 0.15 0 0.45 10 0.25 20 0.05 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation EX of X . ? =EX (b) Find the variance Var X of X .? =VarX
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Find the expected value E(X) of a random variable X having the following probability distribution. (Enter your answer to two decimal places.) E(X) = -2 х -6 10 14 Р(X %3D х) 0.13 0.09 0.14 0.11 0.16 0.37