A refrigerated trucking firm records trailer temperature every minute from a probe mounted inside each trailer. Drivers are not asked to write the temperatures down. What kind of data is this series?
Select an answer to reveal the explanation.
Short Explanation
A probe in the trailer writes the temperature itself, the way a thermometer does, without a driver filling out a form. The trap is calling that a survey, a dock transaction, or a simulated series. You are looking at generated data from a measurement device.
Full Explanation
The series is produced by a probe that measures trailer temperature on a fixed cadence while the trailer operates. Nobody is asked to recall or transcribe the value. That is generated data from a measurement device, often called a sensor stream. Survey data would come from asking people, and the drivers are not filling out a form or choosing which readings count. A transaction log records business events such as a dock scan of a shipment; a temperature sample is a physical measurement, not a commercial event of that kind. Synthetic data would be values simulated to look like temperatures, whereas these rows are measured in the trailer by the probe. No interview was taken, and no person chose which minutes to record. Exam caveat: storing the readings in a company database does not change the source; the acquisition method is the sensor, whatever system later holds the table. Operational check: trace a row to a probe identifier and a timestamp from the device, and confirm it was not typed from a driver form or drawn from a simulator.