OCR Scanners Use a Light Source to Read Characters, Marks

question 28

True/False

OCR scanners use a light source to read characters, marks, and codes.

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Definitions:

Variable

Any characteristic, number, or quantity that can be measured or quantified, which can vary among subjects in a study.

Confidence Level

The proportion of times that an estimating procedure will produce intervals that contain the parameter of interest if the same population is sampled repeatedly.

Precision

The degree to which repeated measurements under unchanged conditions show the same results.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter, expressed with a certain level of confidence.