Summary Handbook Statistics Final Exam (CIS)2023

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___ is the result of adding more semantic constructs to the original entity relationship (ER) model. - -Extended entity relationship model -___ depicts the arrangement of higher-level entity supert... ypes (parent entities) and lower-level entity subtypes (child entities). - -Specialization hierarchy -The attribute in the supertype entity that determines to which entity subtype each supertype occurrence is related. - -subtype discriminator -Subtypes that contain a unique subset of the supertype entity set. - -non-overlapping subtypes -It specifies whether each entity supertype occurrence must also be a member of at least one subtype. - -completeness constraint -Means some supertype occurrences that are not members of any subtype. - -Partial completeness -Means that every supertype occurrence must be a member of at least one subtype. - -Total completeness -The bottom-up process of identifying a higher-level, more generic entity supertype from lower-level entity subtypes. - -generalization -A "virtual" entity type used to represent multiple entities and relationships in the ERD. - -entity cluster -Occurs when you have one entity in two 1:M relationships to other entities, thus producing an association among the other entities that is not expressed in the model. - -fan trap -The entity supertype contains the common characteristics and the entity subtypes contain the unique characteristics of each entity subtype. - -True -Within an inheritance, a subtype can exist only within the context of a supertype and every subtype can have only one supertype to which it is directly related. - -False -The property of Subtype Discriminator enables an entity subtype to inherit the attributes and relationships of the supertype. - -False [Show More]

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Summary Handbook Statistics Final Exam (CIS) Questions and Answers 2023

Introduction to Statistics: one of the tools used to make decisions. - -sda -Sampling costco pizza or checking the temperature before jumping in the shower are both examples of making a decision an...

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