About ____ of Z-Scores in the Standard Normal Distribution Are

question 69

Multiple Choice

About ____ of z-scores in the standard normal distribution are within ±2 standard deviations of the mean.

• A) one-fourth
• B) half
• C) two-thirds
• D) 95%

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Definitions:

Plant Communities

Groups of plants that live together in a specific habitat and interact with each other, forming a sort of ecological community.

Endosymbiont Theory

The theory that explains the origin of organelles like mitochondria and chloroplasts in eukaryotic cells, suggesting they were once independent prokaryotic organisms.

Mutualistic Relationships

Ecological interactions where both species involved benefit and often depend on each other for survival.

Prokaryotes

Single-celled organisms without a distinct nucleus or specialized organelles, including bacteria and archaea.