In a Study Performed by the Statistics Classes at Washington

question 15

Essay

In a study performed 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 were not expired, and 24% had meters that were expired. If the traffic
officer in charge of ticketing checks meters at random, what is the probability he or
she will find an expired meter before the 3rd one checked?

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Definitions:

Groupthink

A psychological phenomenon that occurs within a group of people, in which the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.

Transactive Memory

Transactive memory is a psychological concept explaining how groups collectively store, recall, and share knowledge through the relationships among members.

Metastatements

Communications that provide commentary about other statements, often clarifying or interpreting them.

Persuasive Arguments Theory

View that people in groups are persuaded by novel information that supports their initial position, and thus become more extreme in their endorsement of their initial position.