Table 1.

Distribution of the B Allele Frequencies (BAF) given the genotype and the copy number.

Genotype	Distribution of BAF
Copy number = 0	U[0,1]
A, AA, AAA	0.5Ib = 0 + Ib > 0ϕ(b/η 1)
B, BB, BBB	0.5Ib = 1 + Ib < 0ϕ((b – 1)/η 1)
AB	ϕ((b-0.5)/η 2)
AAB	ϕ((b-1/3)/η 2)
ABB	ϕ((b-2/3)/η 2)

ϕ is the density function of N(0,1).