Suppose X is a continuous random variable defined on (-∞, ∞) and its probability density is of the form fx(t) = 1/exp (-11) What's b, E(X), and Var(X)? please show your derivations in details.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.2: Graphs Of Equations
Problem 78E
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Suppose X is a continuous random variable defined on (-∞, ∞) and its
probability density is of the form
1
fx (t) = exp(-1)
4
What's b, E(X), and Var(X)? please show your derivations in details.
Transcribed Image Text:Suppose X is a continuous random variable defined on (-∞, ∞) and its probability density is of the form 1 fx (t) = exp(-1) 4 What's b, E(X), and Var(X)? please show your derivations in details.
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