Math Problem Statement
A lot containing 7 components is sampled by a quality inspector, the lot contains 4 good components and 3 defective components. A sample of 3 is taken by the inspector. Find the expected value of the number of good components in this sample.
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Solution
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Math Problem Analysis
Mathematical Concepts
Probability
Hypergeometric Distribution
Formulas
E(X) = n × (G / N)
Theorems
Hypergeometric distribution theorem
Suitable Grade Level
Grades 9-12
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