The Select Operation

question 25

Multiple Choice

The select operation:

• A)combines relational tables to provide the user with more information than is otherwise available.
• B)creates a subset consisting of columns in a table.
• C)identifies the table from which the columns will be selected.
• D)creates a subset consisting of all records in the file that meets stated criteria.

---

Definitions:

Estimated Regression Line

A line that runs through a scatter plot of data points, optimally representing the connection between those points.

y-Intercept

The point where a line crosses the y-axis in a graph, representing the value of the dependent variable when all independent variables are zero.

Slope

In a linear equation, the coefficient that represents the rate of change of the dependent variable with respect to the independent variable.

Regression Slope Coefficient

A parameter in regression analysis that represents the change in the dependent variable for a one-unit change in an independent variable.