text: **Extended Data Fig. 7 | Ancestry estimates stratified by genetic sex. a**, Map 
  showing ancestry carried by each Scandinavian Viking age individual.**b**, Ancestry 
  proportions across individuals grouped by Latitude and genetic sex.**c**, Odds 
  ratio and p-values calculated using a two-sided Fisher’s exact test on the number 
  of males and females carrying each ancestry in Viking Age Denmark, Sweden, 
  Norway, Iceland, and Gotland.**d**,*F4*values of the form*f*4(Scandinavian_Peninsula_
  EIA(I), alternative source group, males in Viking group, females in Viking group) 
  computed using all SNPs and Twigstats. A significantly positive value is 
  evidence of attraction of females with pop2 or males with Scandinavian_
  Peninsula_EIA(I). Number of males and females is shown in each facet title and 
  we restrict to groups with at least four males and females. We plot one standard 
  error.**e**, Map showing ‘farflung’ Viking individuals grouped by ancestry and 
  genetic sex. In contrast to Fig. 4a and d where we showed results for the ‘best’ 
  qpAdm model, here in panels**a**,**b, c,**and**e**, an individual is assigned an ancestry 
  group, if it has**any**accepted model (p > 0.01) where that ancestry features. 