Immigrants from Bulgaria vs South American Cognitive Disability

The statistical analysis conducted on geographies consisting of 172,549,844 people shows a moderate negative correlation between the proportion of Immigrants from Bulgaria and percentage of population with cognitive disability in the United States with a correlation coefficient (R) of -0.465 and weighted average of 16.7%. Similarly, the statistical analysis conducted on geographies consisting of 494,074,477 people shows a significant negative correlation between the proportion of South Americans and percentage of population with cognitive disability in the United States with a correlation coefficient (R) of -0.608 and weighted average of 16.7%, a difference of 0.38%.

Cognitive Disability Correlation Summary

Measurement	Immigrants from Bulgaria	South American
Minimum	4.6%	7.3%
Maximum	21.3%	20.3%
Range	16.7%	12.9%
Mean	13.4%	15.2%
Median	13.5%	15.6%
Interquartile 25% (IQ1)	11.3%	14.5%
Interquartile 75% (IQ3)	15.9%	16.8%
Interquartile Range (IQR)	4.6%	2.3%
Standard Deviation (Sample)	3.9%	2.4%
Standard Deviation (Population)	3.8%	2.4%

Demographics Similar to Immigrants from Bulgaria and South Americans by Cognitive Disability

In terms of cognitive disability, the demographic groups most similar to Immigrants from Bulgaria are Immigrants from Hungary (16.7%, a difference of 0.010%), Peruvian (16.7%, a difference of 0.010%), Immigrants from Serbia (16.7%, a difference of 0.020%), Egyptian (16.7%, a difference of 0.030%), and Estonian (16.7%, a difference of 0.040%). Similarly, the demographic groups most similar to South Americans are Immigrants from Egypt (16.7%, a difference of 0.0%), Danish (16.7%, a difference of 0.010%), Immigrants from South America (16.7%, a difference of 0.020%), Immigrants from Southern Europe (16.7%, a difference of 0.020%), and Asian (16.7%, a difference of 0.070%).

Demographics	Rating \| Rank	Cognitive Disability
Slavs	99.3 /100 \| #74	Exceptional 16.7%
Estonians	99.3 /100 \| #75	Exceptional 16.7%
Immigrants \| Serbia	99.3 /100 \| #76	Exceptional 16.7%
Immigrants \| Hungary	99.3 /100 \| #77	Exceptional 16.7%
Peruvians	99.3 /100 \| #78	Exceptional 16.7%
Immigrants \| Bulgaria	99.3 /100 \| #79	Exceptional 16.7%
Egyptians	99.2 /100 \| #80	Exceptional 16.7%
Immigrants \| Netherlands	99.2 /100 \| #81	Exceptional 16.7%
Swiss	99.2 /100 \| #82	Exceptional 16.7%
Serbians	99.1 /100 \| #83	Exceptional 16.7%
Belgians	99.1 /100 \| #84	Exceptional 16.7%
Immigrants \| Moldova	99.1 /100 \| #85	Exceptional 16.7%
Immigrants \| South Africa	99.0 /100 \| #86	Exceptional 16.7%
Native Hawaiians	99.0 /100 \| #87	Exceptional 16.7%
Immigrants \| Philippines	99.0 /100 \| #88	Exceptional 16.7%
Immigrants \| Egypt	98.8 /100 \| #89	Exceptional 16.7%
South Americans	98.8 /100 \| #90	Exceptional 16.7%
Danes	98.8 /100 \| #91	Exceptional 16.7%
Immigrants \| South America	98.8 /100 \| #92	Exceptional 16.7%
Immigrants \| Southern Europe	98.7 /100 \| #93	Exceptional 16.7%
Asians	98.7 /100 \| #94	Exceptional 16.7%