In the analysis of chromium in three samples of stainless steel, the following results were obtained: A (6.25%, 6.24%, 6.26%), B (6.71%, 6.72%, 6.71%), C (6.05%, 6.57%, 6.32%). Suppose the true value is 6.25%, how precise and accurate are the results?
University of Ilorin CHM107 2023A past question
- A, B, C are accurate and precise
- Only A is accurate and precise
- A and B are accurate and precise
- A and C are accurate and precise
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