The Records of a Department Store Show That 20% of Its

question 118

Short Answer

The records of a department store show that 20% of its customers who make a purchase return the merchandise in order to exchange it. In the next six purchases,
a.what is the probability that three customers will return the merchandise for exchange?
b.what is the probability that four customers will return the merchandise for exchange?
c.what is the probability that none of the customers will return the merchandise for exchange?

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Definitions:

Sensory Adaptation

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

Sensation

The process by which our sensory receptors and nervous system receive and represent stimuli from our environment.

Perception

The process by which individuals organize and interpret their sensory impressions in order to give meaning to their environment.

Transduction

The process by which physical or chemical stimuli are converted into a signal that can be interpreted by the body or brain, like the conversion of light into visual information.