Required information In the process of producing engine valves, the valves are subjected to a first grind. Valves whose thicknesses are within the specification are ready for installation. Those valves whose thicknesses are above the specification are reground, while those whose thicknesses are below the specification are scrapped. Assume that after the first grind, 67% of the valves meet the specification, 17% are reground, and 16% are scrapped. Furthermore, assume that of those valves that are reground, 90% meet the specification, and 10% are scrapped. en that a valve is scrapped, what is the probability that it was ground twice?
Required information In the process of producing engine valves, the valves are subjected to a first grind. Valves whose thicknesses are within the specification are ready for installation. Those valves whose thicknesses are above the specification are reground, while those whose thicknesses are below the specification are scrapped. Assume that after the first grind, 67% of the valves meet the specification, 17% are reground, and 16% are scrapped. Furthermore, assume that of those valves that are reground, 90% meet the specification, and 10% are scrapped. en that a valve is scrapped, what is the probability that it was ground twice?
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.2: Systems Of Linear Equations In Two Variables
Problem 33E
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