(See Solution) Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made in a time period. Table #4.2.2
Question: Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made in a time period. Table #4.2.2 gives the defect and the number of defects.
Table #4.2.2: Number of Defective Lenses
| Defect type | Number of defects |
| Scratch | 5865 |
| Right shaped – small | 4613 |
| Flaked | 1992 |
| Wrong axis | 1838 |
| Chamfer wrong | 1596 |
| Crazing, cracks | 1546 |
| Wrong shape | 1485 |
| Wrong PD | 1398 |
| Spots and bubbles | 1371 |
| Wrong height | 1130 |
| Right shape – big | 1105 |
| Lost in lab | 976 |
| Spots/bubble – intern | 976 |
- Find the probability of picking a lens that is scratched or flaked.
- Find the probability of picking a lens that is the wrong PD or was lost in lab.
- Find the probability of picking a lens that is not scratched.
- Find the probability of picking a lens that is not the wrong shape.
Deliverable: Word Document 
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