Although They Only Occupy 0

question 17

Multiple Choice

Although they only occupy 0.2% of the ocean floor,coral reefs provide many benefits.Which of the following is not one of these?

• A) They provide significant free oxygen.
• B) They serve as natural barriers.
• C) They protect coastlines from erosion.
• D) They provide habitats for one-quarter of all marine organisms.
• E) They provide one-tenth of the global fish catch.

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Definitions:

Standard Deviation

A statistic that measures the dispersion or variability of a dataset relative to its mean.

Raw Score

An original, unmodified score obtained in a measurement or test.

Normal Curve

Another term for a normal distribution, characterized by its bell-shaped curve where most observations cluster around the central peak and the probabilities for values further away from the mean taper off equally in both directions.

Mean

The arithmetic average of a set of values, found by dividing the sum of all values by the number of values.