In a newly revamped huge city hall, fluorescence lamps are installed in 113 large exhi- bition rooms, 45 for each room. The lifetime of each lamp independently follows the exponential distribution with a mean lifetime of 60 days. Find the probability that, after 50 days, there are at most 94 rooms having less than 22 working lamps.

In a newly revamped huge city hall, fluorescence lamps are installed in 113 large exhi- bition rooms, 45 for each room. The lifetime of each lamp independently follows the exponential distribution with a mean lifetime of 60 days. Find the probability that, after 50 days, there are at most 94 rooms having less than 22 working lamps.

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....

See similar textbooks