← All parts of this equation

Equation 2 · Part 1 · One Tree: The Statistics of Common Descent

Symbol K

KK
KK

What this part means

K is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

K is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

and K , the Bayes factor, states exactly how many times more probable the observed data D are under one model than the other - not a correlation coefficient, not a subjective sense of resemblance, but a single number with a precise probabilistic meaning that can in principle come out favouring either…

Read this part in the article →

Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

Open the illustrated variables: a letter stands for a value guide →

See this notation across published equations →

Sources cited in the surrounding passage

These citations provide research context; check each source for the exact claim it supports.