English vs Bulgarian Average Family Size

The statistical analysis conducted on geographies consisting of 579,316,351 people shows a poor positive correlation between the proportion of English and average family size in the United States with a correlation coefficient (R) of 0.115 and weighted average of 3.11. Similarly, the statistical analysis conducted on geographies consisting of 205,566,985 people shows a poor positive correlation between the proportion of Bulgarians and average family size in the United States with a correlation coefficient (R) of 0.174 and weighted average of 3.13, a difference of 0.47%.

In terms of average family size, the demographic groups most similar to English are Celtic (3.11, a difference of 0.040%), Ottawa (3.11, a difference of 0.050%), Dutch (3.11, a difference of 0.060%), Czech (3.11, a difference of 0.060%), and Soviet Union (3.11, a difference of 0.12%). Similarly, the demographic groups most similar to Bulgarians are Immigrants from Australia (3.13, a difference of 0.0%), Immigrants from Northern Europe (3.13, a difference of 0.030%), Russian (3.12, a difference of 0.040%), Immigrants from Scotland (3.12, a difference of 0.060%), and Czechoslovakian (3.13, a difference of 0.070%).