Members of Class __________ Are Those Historically Used as Commercial

question 10

Multiple Choice

Members of class __________ are those historically used as commercial bath sponges.

• A)Calcarea
• B)Demospongiae
• C)Hexactinellida
• D)Syconidae
• E)Leuconidae

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Definitions:

Chi-square Test for Independence

A statistical method employed to assess if a significant relationship exists between two variables of categorical type.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, typically defined as the sample size minus the number of parameters estimated.

Contingency Table

A table often used in statistics to display the frequency distribution of variables, showing the number of observations for each combination of categories.

Qualitative Variables

Variables that express categorical data and can be described or classified by qualities rather than numerical measures.