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6. The lifetime X (hours) of a randomly selected battery of a particular brand has pdf 4x3 ·e-(=/455)4 4554 4.x3 f(x) · exp 0

6. The lifetime X (hours) of a randomly selected battery of a particular brand has pdf 4x3 ·e-(=/455)4 4554 4.x3 f(x) · exp 0

A First Course in Probability (10th Edition)
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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6. The lifetime X (hours) of a randomly selected battery of a particular brand has pdf 4x3 4.x3 f(x) ·e-(x/455)4 · exp 0<x <∞. | 4554 4554 455 (a) will last exactly 500 hours? What is the probability that a randomly selected battery
Transcribed Image Text:6. The lifetime X (hours) of a randomly selected battery of a particular brand has pdf 4x3 4.x3 f(x) ·e-(x/455)4 · exp 0<x <∞. | 4554 4554 455 (a) will last exactly 500 hours? What is the probability that a randomly selected battery
(b) will last more than 550 hours? What is the probability that a randomly selected battery
Transcribed Image Text:(b) will last more than 550 hours? What is the probability that a randomly selected battery
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