The Following Are Payments (In Dollars) for a Certain Expense

question 17

Multiple Choice

The following are payments (in dollars) for a certain expense made by a woman during fifteen months. ​ Calculate the lower quartile, the upper quartile, and the interquartile range for the data set. ​

• A) lower quartile =263 upper quartile =405 iqr =142
• B) lower quartile =246 upper quartile =415 iqr =169
• C) lower quartile =141 upper quartile =405 iqr =264
• D) lower quartile =270.5 upper quartile =391.5 iqr =121
• E) lower quartile =255.5 upper quartile =403.5 iqr =147.875

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Definitions:

μ

A symbol often used to represent the mean or average value of a set of numbers in statistics.

Average Waiting Time

The average time that a customer or item spends waiting in a queue before being served.

μ

Typically represents the mean of a population in statistics, or the average arrival or service rate in queuing theory contexts.