Estimate the Indicated Probability by Using the Normal Distribution as an Approximation

question 107

Multiple Choice

Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution.
-Estimate the probability of getting exactly 43 boys in 90 births.

• A)0.0729
• B)0.0764
• C)0.0159
• D)0.1628

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Definitions:

Sensory Adaptation

The process by which sensory receptors become less responsive to constant stimuli over time.

Absolute Threshold

The minimum intensity of stimulation that must occur before you experience a sensation.

Detection Threshold

The minimum level of intensity at which a stimulus is perceived or detected by the sensory system.

Just Noticeable Threshold

The minimum difference in stimulation that a person can detect 50% of the time; also known as the difference threshold.