What is the Relative Percent Difference (RPD) if one test result is 8.7 pCi/L and another is 7.3 pCi/L?

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Multiple Choice

What is the Relative Percent Difference (RPD) if one test result is 8.7 pCi/L and another is 7.3 pCi/L?

Explanation:
To calculate the Relative Percent Difference (RPD), you use the following formula: \[ RPD = \frac{|Value_1 - Value_2|}{\frac{(Value_1 + Value_2)}{2}} \times 100 \] In this case, the two test results are 8.7 pCi/L and 7.3 pCi/L. 1. First, calculate the absolute difference between the two values: \[ |8.7 - 7.3| = 1.4 \] 2. Next, calculate the average of the two values: \[ \frac{(8.7 + 7.3)}{2} = \frac{16.0}{2} = 8.0 \] 3. Now, plug these values into the RPD formula: \[ RPD = \frac{1.4}{8.0} \times 100 = 17.5\% \] The calculation leads to a Relative Percent Difference of 17.5%. This percentage provides a measure of the variability or consistency between the two radon test results. The RPD is a critical metric in radon testing as it helps assess

To calculate the Relative Percent Difference (RPD), you use the following formula:

[ RPD = \frac{|Value_1 - Value_2|}{\frac{(Value_1 + Value_2)}{2}} \times 100 ]

In this case, the two test results are 8.7 pCi/L and 7.3 pCi/L.

  1. First, calculate the absolute difference between the two values:

[ |8.7 - 7.3| = 1.4 ]

  1. Next, calculate the average of the two values:

[ \frac{(8.7 + 7.3)}{2} = \frac{16.0}{2} = 8.0 ]

  1. Now, plug these values into the RPD formula:

[ RPD = \frac{1.4}{8.0} \times 100 = 17.5% ]

The calculation leads to a Relative Percent Difference of 17.5%. This percentage provides a measure of the variability or consistency between the two radon test results. The RPD is a critical metric in radon testing as it helps assess

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