Enforcing Referential Integrity Assures That ________

question 35

Multiple Choice

Enforcing referential integrity assures that ________.

• A)you cannot enter a value in the foreign key if there is no corresponding value in the primary key
• B)you cannot enter the same value in the foreign key of the same table
• C)you cannot leave that field empty
• D)you cannot enter invalid or incorrect information

---

Definitions:

25th Percentile

A value below which 25% of the data falls.

75th Percentile

A value below which 75% of the data points in a dataset fall, used as a measure of dispersion.

Symmetric Data

Data that are evenly distributed around the center, showing mirror-image properties on both sides of the median.

Interquartile Range

The difference between the 75th (third quartile) and 25th (first quartile) percentiles, measuring the spread of the middle 50% of data.