When a DBMS Creates A(n)____ Key,it Is Usually an Automatic

question 64

Multiple Choice

When a DBMS creates a(n) ____ key,it is usually an automatic numbering data type,such as the Access AutoNumber data type.​

• A) ​surrogate
• B) ​artificial
• C) ​natural
• D) ​logical

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Definitions:

Variability

The extent to which data points in a dataset differ from each other.

Sampling Distribution

The probability distribution of a given statistic based on a random sample.

Mean

The mathematical average of a set of numbers, calculated by adding them up and dividing by the count of those numbers.

Directional Null Hypothesis

A null hypothesis that specifies the direction of the expected difference or relationship between two variables, which is not a standard form of null hypothesis and might be considered a misinterpretation, as null hypotheses typically state there is no effect or difference.