A company has two production lines. Line A produces 100 units per hour with an average defect rate of 2%. Line B produces 150 units per hour with an average defect rate of 3%. What is the overall average defect rate for the combined production of both lines?
✓ Correct Answer: Option B
Total defects = (100 * 0.02) + (150 * 0.03) = 2 + 4.5 = 6.5. Total units = 100 + 150 = 250. Overall defect rate = 6.5 / 250 = 0.026 or 2.6%.