Answered: The lifetime X (in hundreds of hours)… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section: Chapter Questions

Problem 9T

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Question

The lifetime X (in hundreds of hours) of a certain type of vacuum tube has a Weibull distribution with parameters α = 2 and ß = 3.+ Compute the following. (Round your answers to three decimal places.)
(a) E(X) and V(X)
E(X) = 2.659
V(X) = 1.931
(b) P(X ≤ 5)
0.938
P(2 ≤ x ≤ 5)
x
(c)
0.306

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