A system consisting of two components will con- tinue to operate only as long as both components function. Suppose the joint pdf of the lifetimes (months) of the two components in a system is given by f(x, y) = c[10 - (x+y) for x > 0, y > 0, x+ y < 10 a. If the first component functions for exactly 3 months, what is the probability that the sec- ond functions for more than 2 months? b. Suppose the system will continue to work only as long as both components function. Among 20 of these systems that operate independently of each other, what is the probability that at least half work for more than 3 months?
A system consisting of two components will con- tinue to operate only as long as both components function. Suppose the joint pdf of the lifetimes (months) of the two components in a system is given by f(x, y) = c[10 - (x+y) for x > 0, y > 0, x+ y < 10 a. If the first component functions for exactly 3 months, what is the probability that the sec- ond functions for more than 2 months? b. Suppose the system will continue to work only as long as both components function. Among 20 of these systems that operate independently of each other, what is the probability that at least half work for more than 3 months?
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 35EQ
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