Irish vs Immigrants from Bulgaria Average Family Size

The statistical analysis conducted on geographies consisting of 580,016,096 people shows a poor positive correlation between the proportion of Irish and average family size in the United States with a correlation coefficient (R) of 0.151 and weighted average of 3.10. Similarly, the statistical analysis conducted on geographies consisting of 172,540,373 people shows a strong negative correlation between the proportion of Immigrants from Bulgaria and average family size in the United States with a correlation coefficient (R) of -0.702 and weighted average of 3.16, a difference of 1.9%.

Average Family Size Correlation Summary

Measurement	Irish	Immigrants from Bulgaria
Minimum	1.75	1.89
Maximum	6.00	3.66
Range	4.25	1.77
Mean	3.22	3.00
Median	3.08	3.09
Interquartile 25% (IQ1)	2.99	2.89
Interquartile 75% (IQ3)	3.43	3.12
Interquartile Range (IQR)	0.44	0.23
Standard Deviation (Sample)	0.59	0.40
Standard Deviation (Population)	0.59	0.39

Similar Demographics by Average Family Size

Demographics Similar to Irish by Average Family Size

In terms of average family size, the demographic groups most similar to Irish are Swedish (3.10, a difference of 0.030%), Luxembourger (3.10, a difference of 0.060%), French (3.10, a difference of 0.060%), Croatian (3.10, a difference of 0.070%), and Estonian (3.10, a difference of 0.090%).

Demographics	Rating \| Rank	Average Family Size
Belgians	0.0 /100 \| #329	Tragic 3.11
Latvians	0.0 /100 \| #330	Tragic 3.11
Scotch-Irish	0.0 /100 \| #331	Tragic 3.11
Scottish	0.0 /100 \| #332	Tragic 3.11
Estonians	0.0 /100 \| #333	Tragic 3.10
Lithuanians	0.0 /100 \| #334	Tragic 3.10
Luxembourgers	0.0 /100 \| #335	Tragic 3.10
Irish	0.0 /100 \| #336	Tragic 3.10
Swedes	0.0 /100 \| #337	Tragic 3.10
French	0.0 /100 \| #338	Tragic 3.10
Croatians	0.0 /100 \| #339	Tragic 3.10
Finns	0.0 /100 \| #340	Tragic 3.09
Poles	0.0 /100 \| #341	Tragic 3.09
Germans	0.0 /100 \| #342	Tragic 3.09
Norwegians	0.0 /100 \| #343	Tragic 3.08

Demographics Similar to Immigrants from Bulgaria by Average Family Size

In terms of average family size, the demographic groups most similar to Immigrants from Bulgaria are American (3.16, a difference of 0.020%), Immigrants from South Africa (3.16, a difference of 0.070%), Immigrants from Greece (3.16, a difference of 0.080%), Immigrants from North Macedonia (3.16, a difference of 0.10%), and Immigrants from Russia (3.16, a difference of 0.10%).

Demographics	Rating \| Rank	Average Family Size
Immigrants \| Kazakhstan	1.5 /100 \| #256	Tragic 3.17
Albanians	1.5 /100 \| #257	Tragic 3.17
Turks	1.3 /100 \| #258	Tragic 3.16
Potawatomi	1.3 /100 \| #259	Tragic 3.16
Immigrants \| Albania	1.3 /100 \| #260	Tragic 3.16
Immigrants \| North Macedonia	1.3 /100 \| #261	Tragic 3.16
Immigrants \| Russia	1.3 /100 \| #262	Tragic 3.16
Immigrants \| Bulgaria	1.0 /100 \| #263	Tragic 3.16
Americans	1.0 /100 \| #264	Tragic 3.16
Immigrants \| South Africa	0.9 /100 \| #265	Tragic 3.16
Immigrants \| Greece	0.9 /100 \| #266	Tragic 3.16
Iroquois	0.8 /100 \| #267	Tragic 3.16
Maltese	0.8 /100 \| #268	Tragic 3.16
Immigrants \| Singapore	0.7 /100 \| #269	Tragic 3.16
Tlingit-Haida	0.7 /100 \| #270	Tragic 3.16