Which of the Following Is Not an Input Device

question 216

Multiple Choice

Which of the following is not an input device?

• A) microphone
• B) scanner
• C) headphone
• D) keyboard

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Definitions:

Statistically Significant

A determination that results in observed data are not likely to be due to chance alone, according to predetermined thresholds in statistical analysis.

Experimental

Relating to a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

Control Group

In experimental research, a group of subjects that does not receive the treatment being tested and is used as a benchmark to measure how the other tested groups do.

Correlation Coefficient

A statistical measure that indicates the extent to which two variables fluctuate together, ranging from -1 (a perfect negative correlation) to +1 (a perfect positive correlation).