45. A type of lightbulb is labelled as having an average lifetime of 1000 hours. It is reasonable to model the probability of failure of these lightbulbs with an exponential density function with p 1000. What is the probability a lightbulb lasts longer than 800 hours? A) el B) C) es D) 1-e¹ E) None of the above.
45. A type of lightbulb is labelled as having an average lifetime of 1000 hours. It is reasonable to model the probability of failure of these lightbulbs with an exponential density function with p 1000. What is the probability a lightbulb lasts longer than 800 hours? A) el B) C) es D) 1-e¹ E) None of the above.
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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Transcribed Image Text:45. A type of lightbulb is labelled as having an average lifetime of 1000 hours. It is reasonable to model
the probability of failure of these lightbulbs with an exponential density function with p 1000.
What is the probability a lightbulb lasts longer than 800 hours?
A) el
B)
C) es
D) 1-er
E) None of the above.
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