Provide an Appropriate Response

question 119

Multiple Choice

Provide an appropriate response.
-Suppose that all the values in a data set are converted to z-scores. Which of the statements below is true? A: The mean of the z-scores will be zero, and the standard deviation of the z-scores will be the same as the
Standard deviation of the original data values.
B: The mean and standard deviation of the z-scores will be the same as the mean and standard deviation of the
Original data values.
C: The mean of the z-scores will be 0, and the standard deviation of the z-scores will be 1.
D: The mean and the standard deviation of the z-scores will both be zero.

• A) D
• B) B
• C) A
• D) C

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Definitions:

Pointer

A pointer is a graphical symbol on a computer screen or interface that indicates where user interaction, such as clicks or selections, will occur.

Mouse

A pointing device used to interact with a computer interface by detecting two-dimensional motion relative to its surface.

Keyboard

An input device comprised of a set of keys, including alphabetic, numeric, and functional keys, used for typing text, entering commands, and controlling functions on a computer or device.

Trackball

A pointing device consisting of a ball housed in a socket containing sensors to detect rotation.