The duration T of an electronic component is a random variable with exponential distribution of parameter lambda. The probability that the electronic component works at least until t = 3λ^(- 1) is: a) e ^ -5 b) Cannot be determined c) e ^ -1 d) 0.0497
The duration T of an electronic component is a random variable with exponential distribution of parameter lambda. The probability that the electronic component works at least until t = 3λ^(- 1) is: a) e ^ -5 b) Cannot be determined c) e ^ -1 d) 0.0497
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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1. The duration T of an electronic component is a random variable with exponential distribution of parameter lambda. The
a) e ^ -5
b) Cannot be determined
c) e ^ -1
d) 0.0497
2. The time consumed by a randomly chosen student connected to a terminal in a local computer facility has a gamma distribution with mean 20 and variance 80. The alpha and beta values are:
a) 1/20 and 1/80
b) 5 and 4
c) 20 and 80
d) 20 and 1/4
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