Which of the Following Statements Is True of a Hierarchical

question 170

Multiple Choice

Which of the following statements is true of a hierarchical DBMS?

• A) child records can have more than one parent record
• B) parent records can have many child records
• C) the DBMS works well with complex data
• D) all of the above

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Definitions:

Mean Square

A statistical measure calculated by dividing the sum of squares by the degrees of freedom, often used in variance analysis.

Treatments

Interventions or actions performed in an experimental study to test their effect on an outcome compared to a control condition.

ANOVA

Stands for Analysis of Variance, a statistical method used to compare the means of three or more samples.

Degrees of Freedom

The amount of separate values or magnitudes that a statistical distribution can possess.