View source for Phred Quality Scores

{| class="wikitable"
From Wikipedia: http://en.wikipedia.org/wiki/Phred_quality_score

==Phred Score Translation==

|+ Phred quality scores are logarithmically linked to error probabilities
! Phred Quality Score
! Probability of incorrect base call
! Base call accuracy
|-
| 10
| 1 in 10
| 90 %
|-
| 20
| 1 in 100
| 99 %
|-
| 30
| 1 in 1000
| 99.9 %
|-
| 40
| 1 in 10000
| 99.99 %
|-
| 50
| 1 in 100000
| 99.999 %
|}