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| 1. |
The thickness of the blade of a fan is specified to lie between 4 cm and 6 cm. The length of the blades must lie between 10 cm and 20 cm. A fan blade randomly selected from a sample of 100 blades has a thickness of 5cm and a length of 21cm. The number of defect(s) the blade has is ______________. |
| A. | One |
| B. | Two |
| C. | There is no defect |
| D. | Three |
| Answer» B. Two | |