Eyeglassomatic manufactures eyeglasses for different retailers.They test to see how many defective lenses they made in a time period.Following table gives the type of defect and the number of defects of that type that occurred.

Table: Type & 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

a.Find the probability that a single randomly-selected defective lens is scratched or flaked:

Enter probability as a fraction or as a decimal rounded to nearest thousandth (three decimal places).Examples of correctly entered responses:

3/55/110.3000.6500.971

b.Find the probability that a single randomly-selected defective lens is the wrong PD or was lost in the lab:

Enter probability as a fraction or as a decimal rounded to nearest thousandth (three decimal places).Examples of correctly entered responses:

3/55/110.3000.6500.971

c.Find the probability that a single randomly-selected defective lens was NOT defective due to scratch:

Enter probability as a fraction or as a decimal rounded to nearest thousandth (three decimal places).Examples of correctly entered responses:

3/55/110.3000.6500.971

d.Find the probability that a single randomly-selected defective was NOT defective due to wrong shape:

Enter probability as a fraction or as a decimal rounded to nearest thousandth (three decimal places).Examples of correctly entered responses:

3/55/110.3000.6500.971