If a 1:M Relationship Is Mandatory on Both Sides,which of the Following

question 24

Multiple Choice

If a 1:M relationship is mandatory on both sides,which of the following is true?

• A)The resulting foreign key can have null (empty)values
• B)The resulting foreign key cannot have null (empty)values
• C)The resulting foreign key must have null (empty)values
• D)No foreign key is created as a result of mapping such a relationship

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Definitions:

Critical Value

A threshold value that defines the boundary of the critical region, where if the test statistic exceeds this value, the null hypothesis is rejected.

Alpha

A threshold value used in hypothesis testing that represents the level of significance, typically set at 0.05 or 0.01, indicating the probability of wrongly rejecting the null hypothesis.

Chi-square Statistic

A statistical measure used to determine if there is a significant relationship between two categorical variables.

Degrees of Freedom

The number of independent values or quantities that can vary in the calculation of a statistic.