Question

4.2.2 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 Number of defects Defect type Scratch Right shaped-small Flaked Wrong axis Chamfer wrong Crazing, cracks 5865 4613 1992 1838 1596 1546 1485 1398 1371 1130 1105 976 976 Wrong shape Wrong PD Spots and bubbles Wrong height Right shape-big Lost in lab Spots/bubble - intern a.) Find the probability of picking a lens that is scratched or flaked. b.) Find the probability of picking a lens that is the wrong PD or was lost in lab. c.) Find the probability of picking a lens that is not scratched. d.) Find the probability of picking a lens that is not the wrong shape. 4.2.8

Answer 1