The Local Police Department Must Write,on Average,5 Tickets a Day

question 179

Multiple Choice

The local police department must write,on average,5 tickets a day to keep department revenues at budgeted levels.Suppose the number of tickets written per day follows a Poisson distribution with a mean of 6.5 tickets per day.Interpret the value of the mean.

• A)The number of tickets that is written most often is 6.5 tickets per day.
• B)Half of the days have less than 6.5 tickets written,and half of the days have more than 6.5 tickets written.
• C)If we sampled all days,the arithmetic average or expected number of tickets written would be 6.5 tickets per day.
• D)The mean has no interpretation since 0.5 ticket can never be written.

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Definitions:

Voice Box

The part of the air passage to the lungs that holds the vocal cords; it is responsible for producing sound.

Larynx

The voice box located in the throat, involved in breathing, producing sound, and protecting the trachea against food aspiration.

Trachea

The windpipe, a tube that connects the larynx to the bronchi of the lungs.

Pharynx

A muscular tube that connects the mouth and nasal passages with the esophagus and larynx, serving both respiratory and digestive functions.