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The table below shows a frequency distribution of the lifetimes of electronic tubes produced at a factory, determine the percentage of electronic tubes with lifetimes are at least 400 hours but less than 700 hours. A-19% B-29.5% C-78% D-51.5% E-45%

The table below shows a frequency distribution of the lifetimes of electronic tubes produced at a factory, determine the percentage of electronic tubes with lifetimes are at least 400 hours but less than 700 hours. A-19% B-29.5% C-78% D-51.5% E-45%

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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Engineering statistics, i need solutions in 10 minutes please. MCQ/The table below shows a frequency distribution of the lifetimes of electronic tubes produced at a factory, determine the percentage of electronic tubes with lifetimes are at least 400 hours but less than 700 hours. A-19% B-29.5% C-78% D-51.5% E-45%
Lifetime Number of (hours) Electronic Tubes 300-399 14 400-499 46 500-599 58 600-699 76 700-799 68 800-899 62 900-999 48 1000-1099 22 1100-1199 6.
Transcribed Image Text:Lifetime Number of (hours) Electronic Tubes 300-399 14 400-499 46 500-599 58 600-699 76 700-799 68 800-899 62 900-999 48 1000-1099 22 1100-1199 6.
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