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:

Anterograde Amnesia

is a condition where an individual is unable to form new memories following an event that caused the amnesia, despite retaining memories from before the event.

Retrograde Amnesia

A condition where a person loses memories prior to a specific event, usually a trauma or injury, but retains the ability to form new memories.

Proactive Interference

The tendency for older memories to interfere with the retrieval of newer memories, often hindering learning and recall.

Procedural Memories

A type of long-term memory that enables people to learn and perform tasks without conscious awareness, often referred to as the memory for how things are done.