What accuracy is required for the temperature measuring device over a specific range?

The choice that specifies an accuracy of +/- 1 degree Fahrenheit between 30 to 120 degrees Fahrenheit is correct because it defines a narrow and precise accuracy range that meets typical standards for reliable temperature measurements in various applications. This level of accuracy ensures that measurements taken within this range are consistent and dependable, which is crucial when monitoring conditions that could affect product quality, safety, or process efficiency.

The range of 30 to 120 degrees Fahrenheit is also practical, as it encompasses many scenarios in heating, cooling, and manufacturing processes. By ensuring that the measuring device remains within this specified accuracy, users can have confidence in the measurements that inform decisions and actions.

To provide context, the other options fall short in various ways. For example, an accuracy of +/- 2 degrees Fahrenheit over a broader range may not meet the needs for precision in certain applications, while the range of 0 to 100 degrees Fahrenheit may not cover the full spectrum required for many industrial processes. Similarly, another option may indicate an accuracy that, while slightly better, does not cover as wide a range, limiting its application.