When Data Is Collected Using a Qualitative,nominal Variable,i

question 31

Multiple Choice

When data is collected using a qualitative,nominal variable,i.e. ,male or female,what is true about a frequency distribution that summarizes the data?

• A)Upper and lower class limits must be calculated.
• B)Class midpoints can be computed.
• C)Number of classes corresponds to number of the variable's values.
• D)The "2 to the k rule" can be applied.

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Definitions:

Cacti

Desert plants known for their ability to store water, typically having thickened, fleshy parts adapted to conserve water and covered with spines for protection.

Plankton

Freshwater and marine organisms that are suspended on or near the surface of the water; includes phytoplankton and zooplankton.

Microscopic Organisms

Tiny living organisms, such as bacteria, viruses, protozoa, and some algae and fungi, that can only be seen with the aid of a microscope.

Freshwater

Water containing minimal amounts of dissolved salts, found in rivers, lakes, and streams.