What is the advantage of a device that displays BAC readings to the thousandth decimal place (i.e., .000%) versus a device that displays BAC readings to the hundredth decimal place (i.e., .00%)?
Breath alcohol testers that offer BAC readings to the hundredth decimal place (i.e., .00%) often do so by rounding the digit that would otherwise appear in the thousandth decimal place. For instance, if a persons blood alcohol content is .075%, then a device that displays readings to the hundredth decimal place (i.e., .00%) would round up the final digit and the device would display .08%. Similarly, if a persons blood alcohol content is .084%, then a device that displays readings to the hundredth decimal place (i.e., 00%) would round down the final digital and the device would display .08%. Devices that offer readings to the thousandth decimal place (.000%) give the user the final check digit to remove the speculation of which way the device is rounding.
Related Questions
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