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
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
25,891
a.)Find the probability of picking a lens that is scratched or flaked.
0.31
b.)Find the probability of picking a lens that is the wrong PD or was lost in lab.
0.09
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.
I'm not sure if i'm doing these problems correctly?
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Mathematical Applications for the Management Life and Social Sciences
Authors: Ronald J. Harshbarger, James J. Reynolds
11th edition
9781337032247, 9781305465183, 1305108043, 1337032247, 1305465180, 978-1305108042
