Use the Following Table to Answer the Question(s) Below

question 21

Multiple Choice

Use the following table to answer the question(s) below.

-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

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Definitions:

Rods

Photoreceptor cells in the retina of the eye that are responsible for vision at low light levels.

Absolute Sensory Threshold

The minimum stimulus intensity required for detection by a sensory system.

Stimulus

Anything that triggers a sensory or behavioral reaction in a living organism.

Unconscious Level

Refers to the part of the mind that is inaccessible to the conscious mind but that affects behavior and emotions.