Use the Following to Answer Questions

question 15

Multiple Choice

Use the following to answer questions :
The following table lists the monthly incomes (in hundreds of dollars) and the monthly rents paid (in hundreds of dollars) by a sample of six families.

-Suppose we have information on the monthly incomes and the monthly rents paid by a sample of families.In the regression of monthly rent paid on the monthly income for these data,the value of a will represent:

• A)the point where this regression line will intersect the y-axis
• B)the point where this regression line will intersect the x-axis
• C)an increase in the monthly rent paid by a family due to a $100 increase in income
• D)an increase in the income of a family due to a $100 increase in the monthly rent

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Definitions:

Magnetic Lines

Imaginary lines used to represent the direction and strength of a magnetic field around a magnet or an electric current.

Pole Pieces

The parts of a DC machine that form magnetic poles.

Mechanical Energy

The sum of potential and kinetic energy in a physical system, associated with the motion and position of objects.

DC Electrical Energy

Energy supplied by a direct current (DC) source, characterized by the uni-directional flow of electric charge.