https://bridgeslab.sph.umich.edu/protocols/index.php?action=history&feed=atom&title=Phred_Quality_Scores
Phred Quality Scores - Revision history
2026-06-01T21:12:29Z
Revision history for this page on the wiki
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https://bridgeslab.sph.umich.edu/protocols/index.php?title=Phred_Quality_Scores&diff=661&oldid=prev
Davebrid: copied from wikipedia
2012-06-12T17:25:50Z
<p>copied from wikipedia</p>
<p><b>New page</b></p><div>{| class="wikitable"<br />
From Wikipedia: http://en.wikipedia.org/wiki/Phred_quality_score<br />
<br />
==Phred Score Translation==<br />
<br />
|+ Phred quality scores are logarithmically linked to error probabilities<br />
! Phred Quality Score<br />
! Probability of incorrect base call<br />
! Base call accuracy<br />
|-<br />
| 10<br />
| 1 in 10<br />
| 90 %<br />
|-<br />
| 20<br />
| 1 in 100<br />
| 99 %<br />
|-<br />
| 30<br />
| 1 in 1000<br />
| 99.9 %<br />
|-<br />
| 40<br />
| 1 in 10000<br />
| 99.99 %<br />
|-<br />
| 50<br />
| 1 in 100000<br />
| 99.999 %<br />
|}</div>
Davebrid