Math Problem Statement
Sebuah proses pabrik menghasilkan baut yang harus terletak antara 1,2 dan 1,25 inci diameternya. Diameter tersebut diketahui berdistribusi normal dengan rata-rata 1,21 dan standar deviasi 0,02. Berapa persen baut tersebut tidak memenuhi spesifikasi diatas.
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Normal Distribution
Z-score
Formulas
z = (x - μ) / σ
P(a ≤ X ≤ b) = P(z_b) - P(z_a)
Theorems
Properties of Normal Distribution
Z-Score Calculation
Suitable Grade Level
Grades 11-12
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