Jewelry that makes noise is acceptable to wear to a professional workplace

House's revised path-goal theory has been tested enough to verify its overall conclusion

a. true b. false

A producer of contact lenses regularly takes samples of 100 lenses and inspects them for scratches. If a lens has a single scratch, it cannot be sold. The results of 10 samples are shown

What is the average proportion defective? A) 0.012 B) 0.014 C) 0.020 D) 0.028 E) 0.035