In a Major Study by the Statistics Classes at Washington

question 21

Essay

In a major study by the statistics classes at Washington High School, city parking spaces were examined for compliance with the requirement to put money in the parking meters. Overall, the students found that 76% of metered parking places had meters that had not expired, and 24% had meters that were expired. If the traffic officer in charge of ticketing cars with expired meters checks meters at random, what is the probability he or she will find an expired meter before the 3rd one?

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Definitions:

Asymmetric Centers

Carbon atoms bonded to four different groups, creating chirality and isomerism in molecules.

Aldohexose

A simple sugar or monosaccharide containing six carbon atoms and an aldehyde group.

D-(-)-Gulose

A naturally occurring sugar belonging to the family of aldohexoses, known for its optical activity.

Naturally Occurring Sugars

Sugars that are found in natural sources such as fruits, vegetables, and honey, not added during processing or packaging.