Let X be a discrete random variable with probability function as indicated in the following table. x -2 -1 0 1 2 f(x)=P(X=x) 1/8 a b 1/8 1/8 If P (X = −1) = 5P (X = 0), the expected value of X is: a.19/48 b.−19/48 c. 25/48 d.−25/48

Let X be a discrete random variable with probability function as indicated in the following table. x -2 -1 0 1 2 f(x)=P(X=x) 1/8 a b 1/8 1/8 If P (X = −1) = 5P (X = 0), the expected value of X is: a.19/48 b.−19/48 c. 25/48 d.−25/48

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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Question

Let X be a discrete random variable with probability function as indicated in the following table.

x	-2	-1	0	1	2
f(x)=P(X=x)	1/8	a	b	1/8	1/8

If P (X = −1) = 5P (X = 0), the expected value of X is:

a.19/48

b.−19/48

c. 25/48

d.−25/48

Expression, rule, or law that gives the relationship between an independent variable and dependent variable. Some important types of functions are injective function, surjective function, polynomial function, and inverse function.

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