Table 3.

Estimated variance of the within-population variance (V̂_i/2), computed directly from data, and its theoretical value predicted from the model

Motif type of loci (repeat length)	Number of loci	Data source	Variance of V̂i/2
			Observed*	Theoretical†
Di	8	Refs. 16–18	39.3	56.0
	115	GDB	36.4	52.5
Tri-neutral	1	Refs. 16–18	—	10.3
	4	Ref. 20	10.4	23.8
	3	GDB	244.7	146.3
Tetra	5	Refs. 16–18	4.7	9.7
	8	Ref. 20	2.0	5.8
	30	Ref. 21	54.5	35.8
	12	GDB	33.6	38.1
Tri-disease	4	Refs. 16–18	81.0	158.1
	1	GDB	—	457.3

^*Unbiased sample estimates of variance of V̂_i/2. 

^†(4/3)(V̂_i/2)², where V̂_i = Σ_jk V_ijk/(K_iJ).