Suppose the length of copper wiring average 1 defect every 400 ft what is the probability that a 400 footy stretch will have 2 defects

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.8: Rate-time-distance Problems
Problem 19P
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Suppose the length of copper wiring average 1 defect every 400 ft what is the probability that a 400 footy stretch will have 2 defects A) 0.1353 B) 0.1839 C) 0.2707 D) 0.3679 E) 0.2231
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