You Are Given an E-R Diagram with Two Entities,ORDER and CUSTOMER,as

question 13

Multiple Choice

You are given an E-R diagram with two entities,ORDER and CUSTOMER,as shown above.What does the symbol next to the ORDER entity indicate?

• A)A maximum cardinality of "zero"
• B)A maximum cardinality of "one"
• C)A minimum cardinality of "optional"
• D)A minimum cardinality of "required"
• E)None of the above.

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Definitions:

Price Per Barrel

The cost for a barrel of commodities such as oil or beer, typically used to measure large quantities.

Least Squares Regression

A statistical method used to determine the best-fitting line through a set of data points by minimizing the sum of the squares of the vertical distances of the points from the line.

Correlation Analysis

The statistical technique used to determine the degree to which two or more quantitative variables are related to one another.

Independent Variable

A variable that is manipulated or classified in an experiment or study to observe its effect on the dependent variable.