​ Contents of the PROMOTION Table

question 22

Multiple Choice

​
Contents of the PROMOTION table
Structure of the BOOKS table
-How many joining conditions will be required in an SQL statement that is used to determine the gift that corresponds to each book in the BOOKS table?​

• A) ​4
• B) ​3
• C) ​2
• D) ​1

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Definitions:

Random Variable

A variable that takes on different values randomly, each with a particular probability associated with it.

Standard Deviations

Measures of dispersion that indicate how spread out the values in a data set are around the mean.

Normal Distribution

A symmetric bell-shaped distribution that is widely used in statistics to represent the real-valued random variables with unknown distributions.

Standardized Form

A form of representation that allows different data sets or equations to be compared or analyzed using a common standard.