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Nonparametric tests can be more powerful than the corresponding t or F tests if the population distribution is highly skewed or nonnormal.
Two-Dimensional Code
A matrix barcode that stores information both horizontally and vertically, such as a QR code.
Active RFID Codes
Radio-frequency identification tags that have their own power source, allowing them to transmit data over longer distances than passive RFID tags.
Track
To monitor or follow the progress or movement of an object, individual, or trend over time.
Pencils
Pencils are writing instruments that use graphite (or a similar substance) encased in wood or a composite material to mark surfaces, primarily paper.
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