The Time of a Call to a Technical Support Line

question 20

Multiple Choice

The time of a call to a technical support line is uniformly distributed between 2 and 10 minutes.What are the mean and variance of this distribution?

• A) 6 minutes and 2.3094 (minutes)²
• B) 6 minutes and 5.3333 (minutes)²
• C) 6 minutes and 5.3333 minutes
• D) 8 minutes and 2.3094 minutes

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Definitions:

Outcomes

The results or consequences of actions, processes, or experiments, which can be measured and analyzed.

Pseudorandom Numbers

Numbers that are generated using deterministic algorithms that approximate the properties of random numbers.

Truly Random Numbers

Numbers generated in a way that is impossible to predict, providing an equal chance for every outcome.

Statistics

The science of collecting, analyzing, interpreting, presenting, and organizing data.