Find the Indicated Probability. Express Answers as Decimals

question 71

Multiple Choice

Find the indicated probability. Express answers as decimals.
-A batch consists of 20 defective coils and 80 good ones. Find the probability of getting two good coils when two coils are randomly selected if the first selection is replaced before the second is made.

• A)0.4
• B)0.64
• C)0.04
• D)0.46

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Definitions:

Fechner's Law

A principle describing the logarithmic relationship between stimulus magnitude and the resultant sensory experience's intensity.

Specificity Theory

The proposal that different sensory qualities are signaled by different quality-specific neurons. This theory is correct in only a few cases (e.g., pain).

Sensation

The process by which sensory receptors and the nervous system receive and represent stimulus energies from the environment.

Neurons

The basic working units of the brain, specialized cells designed to transmit information to other nerve cells, muscle, or gland cells.