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:

Cohesion

The action or property of like molecules sticking together, being mutually attractive, which is observed in various physical phenomena such as water droplets forming on a surface.

Water Molecules

The smallest unit of water, consisting of two hydrogen atoms bonded to one oxygen atom, essential for life's processes.

Vascular Bundles

Structures in plants that contain xylem and phloem tissues, responsible for the transport of water, nutrients, and sugars.

Monocot

Refers to monocotyledons, a group of flowering plants that possess one embryonic leaf or cotyledon in their seeds.