Immigrants from Portugal vs South American Indian Average Family Size

The statistical analysis conducted on geographies consisting of 174,766,763 people shows a moderate negative correlation between the proportion of Immigrants from Portugal and average family size in the United States with a correlation coefficient (R) of -0.426 and weighted average of 3.18. Similarly, the statistical analysis conducted on geographies consisting of 164,540,094 people shows a mild negative correlation between the proportion of South American Indians and average family size in the United States with a correlation coefficient (R) of -0.352 and weighted average of 3.26, a difference of 2.5%.

In terms of average family size, the demographic groups most similar to Immigrants from Portugal are Immigrants from Turkey (3.18, a difference of 0.010%), Iranian (3.18, a difference of 0.030%), Brazilian (3.18, a difference of 0.040%), Immigrants from Romania (3.18, a difference of 0.050%), and Romanian (3.18, a difference of 0.050%).

In terms of average family size, the demographic groups most similar to South American Indians are Immigrants from Cuba (3.26, a difference of 0.020%), Alaskan Athabascan (3.27, a difference of 0.050%), Immigrants from Costa Rica (3.26, a difference of 0.050%), Immigrants from Syria (3.26, a difference of 0.060%), and Immigrants from Colombia (3.27, a difference of 0.070%).