Examlex
A table that is in 2NF and contains no transitive dependencies is said to be in _____.
Effect Size
A quantitative measure of the magnitude of the difference between groups or the size of a relationship between variables.
Analysis of Variance
Analysis of variance (ANOVA) is a statistical method used to compare the means of three or more groups to determine if there are significant differences between them.
Test Statistic
A value calculated from sample data during a hypothesis test, used to make a decision about the relationship between variables or the acceptance of a hypothesis.
Test Statistic
A standardized value derived from sample data during a hypothesis test that is used to determine whether to reject the null hypothesis.
Q11: In an ER diagram,primary keys are usually
Q14: Because real-world database design is generally done
Q20: The existence of a(n)_ relationship indicates that
Q47: The practical significance of taking the logical
Q53: A(n)_ is an ordered arrangement of keys
Q70: In the detailed systems design phase,the designer
Q78: The _ clause is used to restrict
Q81: How does a corporate raider attempt to
Q83: BCNF can be violated only if the
Q98: A _ entity has a primary key