Immigrants from Bulgaria vs Nigerian Average Family Size

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. Similarly, the statistical analysis conducted on geographies consisting of 332,464,526 people shows a mild negative correlation between the proportion of Nigerians and average family size in the United States with a correlation coefficient (R) of -0.380 and weighted average of 3.29, a difference of 4.1%.

Average Family Size Correlation Summary

Measurement	Immigrants from Bulgaria	Nigerian
Minimum	1.89	2.43
Maximum	3.66	3.90
Range	1.77	1.47
Mean	3.00	3.28
Median	3.09	3.34
Interquartile 25% (IQ1)	2.89	3.23
Interquartile 75% (IQ3)	3.12	3.45
Interquartile Range (IQR)	0.23	0.22
Standard Deviation (Sample)	0.40	0.29
Standard Deviation (Population)	0.39	0.29

Similar Demographics by Average Family Size

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

Demographics Similar to Nigerians by Average Family Size

In terms of average family size, the demographic groups most similar to Nigerians are Barbadian (3.29, a difference of 0.0%), Immigrants from Oceania (3.29, a difference of 0.010%), Guamanian/Chamorro (3.29, a difference of 0.010%), Immigrants from Burma/Myanmar (3.29, a difference of 0.020%), and West Indian (3.29, a difference of 0.030%).

Demographics	Rating \| Rank	Average Family Size
Immigrants \| Cameroon	99.2 /100 \| #92	Exceptional 3.30
Peruvians	99.2 /100 \| #93	Exceptional 3.30
Sierra Leoneans	99.0 /100 \| #94	Exceptional 3.30
Immigrants \| Lebanon	99.0 /100 \| #95	Exceptional 3.30
U.S. Virgin Islanders	98.8 /100 \| #96	Exceptional 3.29
Immigrants \| Oceania	98.7 /100 \| #97	Exceptional 3.29
Barbadians	98.6 /100 \| #98	Exceptional 3.29
Nigerians	98.6 /100 \| #99	Exceptional 3.29
Guamanians/Chamorros	98.6 /100 \| #100	Exceptional 3.29
Immigrants \| Burma/Myanmar	98.6 /100 \| #101	Exceptional 3.29
West Indians	98.5 /100 \| #102	Exceptional 3.29
Immigrants \| Western Africa	98.4 /100 \| #103	Exceptional 3.29
Bolivians	98.3 /100 \| #104	Exceptional 3.29
Immigrants \| Ghana	98.1 /100 \| #105	Exceptional 3.29
Paiute	98.0 /100 \| #106	Exceptional 3.29