A Normal Random Variable X Has Mean 54 and Standard

question 216

Essay

A normal random variable x has mean 54 and standard deviation 15. Would it be unusual to observe the value x = 0? Explain your answer.

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Definitions:

Devonian Period

A geologic period of the Paleozoic Era, approximately 419.2 to 358.9 million years ago, known as the "Age of Fishes" due to the diversity and abundance of fish species.

Photosynthetic Autotrophs

Organisms that can produce their own food from inorganic substances using light as an energy source.

Burgess Shale

A famous fossil field located in the Canadian Rockies of British Columbia, known for the exceptional preservation of the soft parts of its fossils from the Cambrian Period.

Cambrian Period

A geologic era approximately 541 million years ago, marked by a rapid increase in the diversity of life and the appearance of most major animal groups.