Answer :
Final answer:
The air-temperature measuring device used in a cooler must be accurate to ±2 degrees Fahrenheit or ±1 degree Celsius. These values are typically the accuracy required for temperature control in environments where precision is important, such as food storage.
Explanation:
The question is asking to determine the required accuracy of an air-temperature measuring device used in a cooler. To ensure proper temperature control in environments such as a cooler, it is crucial to have accurate temperature measurements. Given the options and knowing that air-temperature accuracy is important for various reasons including food safety, the most reasonable degree of accuracy would be the one that allows for minor deviations without compromising safety or quality. Therefore, the correct answer to the question is option b) ±2 degrees Fahrenheit or ±1 degree Celsius, as these are standard accuracy levels for many temperature control devices used in food storage and other sensitive environments. It should be noted that when discussing the relationship between the Fahrenheit and Celsius scales, a temperature difference of one degree Celsius is greater than a temperature difference of one degree Fahrenheit. Specifically, a single degree of change in Celsius corresponds to 1.8 degrees change in Fahrenheit, as can be derived from the conversion formula C = 5/9 x (F - 32).
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