On an Exam Bob Scored 75% and Was 1

question 20

Multiple Choice

On an exam Bob scored 75% and was 1.5 standard deviations above the mean of 63%.What was the standard deviation?

• A)12%
• B)18%
• C)16%
• D)8%
• E)1.5%

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Definitions:

System

A set of connected elements or components that function together as a complex whole, often described in terms of inputs, processes, outputs, and feedback.

Customer

An individual or organization that purchases goods or services from another entity, typically playing a vital role in the entity's revenue stream.

Little's Law

A mathematical principle in queueing theory stating that, in a stable system, the long-term average number of items in the system is equal to their long-term average arrival rate multiplied by their average time in the system.

Average Number

The central value of a set of numbers, calculated by dividing the sum of all numbers by the count of those numbers.