A Column in One Table That References a Primary Key

question 10

Multiple Choice

A column in one table that references a primary key in another table is known as a __________.

• A) secondary key
• B) foreign key
• C) referential key
• D) meta key

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Definitions:

Standard Error

The standard deviation of the sampling distribution of a statistic, often used to measure the precision of a sample mean.

Margin of Error

A statistic expressing the amount of random sampling error in a survey's results, indicating a range within which the true population parameter is likely to lie.

Confidence Interval

A set of values obtained from sample data, which is expected to encompass the value of an unspecified population parameter.

Margin of Error

A statistic expressing the amount of random sampling error in a survey's results, representing the range within which the true population parameter is likely to lie with a certain degree of confidence.