A proofreader has a 98% chance of detecting an error in a piece of written work (other than misspellings, double words, and similar errors that are machine detected). A work contains four errors. 18. Find the probability that the proofreader will miss at least one of them 19. Show that two such proofreaders working independently have a 99.96% chance of detecting an error in a piece of written work 20. Find the probability that tw vill miss at least one error in a work 4 that contains four f(x) 1/8 1/4 3/8 1/4
A proofreader has a 98% chance of detecting an error in a piece of written work (other than misspellings, double words, and similar errors that are machine detected). A work contains four errors. 18. Find the probability that the proofreader will miss at least one of them 19. Show that two such proofreaders working independently have a 99.96% chance of detecting an error in a piece of written work 20. Find the probability that tw vill miss at least one error in a work 4 that contains four f(x) 1/8 1/4 3/8 1/4
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:A proofreader has a 98% chance of detecting an error in a piece of written work (other than misspellings, double
words, and similar errors that are machine detected). A work contains four errors.
18. Find the probability that the proofreader will miss at least one of them
19. Show that two such proofreaders working independently have a 99.96% chance of detecting an error in a
piece of written work
20. Find the probability that tw
vill miss at least one error in a work
3
4
that contains four
f(x)
1/8
1/4
3/8
1/4
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