Source: wikibot/phred-quality-score
= Phred quality score
{wiki=Phred_quality_score}
The Phred quality score is a measure of the accuracy of a base call in DNA sequencing. It quantifies the confidence that a specific base in a DNA sequence is correct, allowing researchers to assess the quality of the sequencing data. The Phred score is calculated using the formula: \\\[ Q = -10 \\times \\log_\{10\}(P) \\\] where \\( Q \\) is the Phred score and \\( P \\) is the probability that the base call is incorrect.