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Precision and Errors Any manipulations of a formula can induce errors. These are caused by rounding results during calculations. The accuracy of the measurements also limits precision. To get the most accurate results, use weights instead of volume measurements. (Accurate volume measurements are very difficult to achieve at home). It is also important to understand the limits of precision. If your scale only measures grams, your formulas will only be accurate to grams. If your scale is accurate to .1 grams then your precision will be .1 grams. Use the smallest measurement your scale allows. If the scale reads in grams or quarter ounces, use grams (1/4 ounce = 7.1 grams). The smaller the units, the more precise the measurement will be. The more precise the measurement is, the smaller the error will be.
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