What Can Be Said About the Expected Value and Standard

question 9

Multiple Choice

What can be said about the expected value and standard deviation of an exponential distribution?

• A) The expected value is equal to the standard deviation.
• B) The expected value is equal to the square of the standard deviation.
• C) The expected value is equal to the reciprocal of the standard deviation.
• D) The expected value is equal to the square root of the standard deviation.

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Definitions:

Phylum Echinodermata

A group of marine animals characterized by radially symmetrical body plans, a water vascular system, and a calcified skin, including stars, sea urchins, and cucumbers.

Phylum Chordata

The Phylum Chordata encompasses animals with a notochord, a dorsal nerve cord, pharyngeal slits, and a post-anal tail at some point in their development.

Carnivorous Predators

Organisms that derive their nutrition by consuming other animals. They have adaptations that allow them to capture and digest their prey.

Scavengers

Organisms that feed on dead or decaying organic matter, playing an important role in the ecosystem by helping to dispose of waste and recycle nutrients.