Today Almost Every Commercial Database Is Based on ________

question 61

Multiple Choice

Today almost every commercial database is based on ________.

• A) lists
• B) the hierarchical model
• C) the linked-list model
• D) the relational model
• E) the object-oriented model

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Definitions:

Null Hypothesis

A default position that posits no effect or no difference exists between groups or variables in a given study.

P-value

The p-value is a statistical measure that indicates the probability of the observed data, or more extreme, given that the null hypothesis is true, used in hypothesis testing.

Causal Relationship

A connection between two events where one is the cause of the other, indicating that changes in one variable directly cause changes in the other.

Newborn Twins

Infant siblings born simultaneously from the same pregnancy, typically arriving within minutes or hours of each other.