How Models Learn

Specificity

P(negative | doesn’t have the condition): the share of people without it whom the test correctly clears.

Its specificity is P(negative | no cancer): 8,693 / 9,605 ≈ 90.5%.
From Probability and Bayes, step “Joint and conditional probability”

See it in action

Try specificity hands-on in the lesson Probability and Bayes, part of the The maths behind AI course.

Open the lesson