The economic life (in years) of a certain electrically-powered machine is a continuous random variable having the probability density: -x/4.5 for x > 0 f(x)= 4.5 for x <0 Find the probability that the machine will be useful anywhere between 4.3 to 6 years. O 0.103 O 0.274 none of these
The economic life (in years) of a certain electrically-powered machine is a continuous random variable having the probability density: -x/4.5 for x > 0 f(x)= 4.5 for x <0 Find the probability that the machine will be useful anywhere between 4.3 to 6 years. O 0.103 O 0.274 none of these
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 economic life (in years) of a certain
electrically-powered machine is a continuous
random variable having the probability density:
-x/4.5
4.5
for x > 0
f(x) =
for x <0
Find the probability that the machine will be
useful anywhere between 4.3 to 6 years.
0.103
0.274
none of these
0.316](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8a54bf2d-06fb-4cd4-92b6-726ae42e4d26%2F1e76bad8-b90c-4766-a80c-463b3dd9b218%2Fj0hocsk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The economic life (in years) of a certain
electrically-powered machine is a continuous
random variable having the probability density:
-x/4.5
4.5
for x > 0
f(x) =
for x <0
Find the probability that the machine will be
useful anywhere between 4.3 to 6 years.
0.103
0.274
none of these
0.316
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