Pennsylvania German vs Immigrants from Italy Cognitive Disability

The statistical analysis conducted on geographies consisting of 234,106,123 people shows a substantial positive correlation between the proportion of Pennsylvania Germans and percentage of population with cognitive disability in the United States with a correlation coefficient (R) of 0.585 and weighted average of 16.6%. Similarly, the statistical analysis conducted on geographies consisting of 324,202,765 people shows a slight negative correlation between the proportion of Immigrants from Italy and percentage of population with cognitive disability in the United States with a correlation coefficient (R) of -0.080 and weighted average of 16.5%, a difference of 0.50%.

Cognitive Disability Correlation Summary

Measurement	Pennsylvania German	Immigrants from Italy
Minimum	3.1%	3.9%
Maximum	87.0%	31.9%
Range	83.8%	27.9%
Mean	21.1%	13.6%
Median	15.5%	13.6%
Interquartile 25% (IQ1)	13.2%	11.3%
Interquartile 75% (IQ3)	19.5%	15.9%
Interquartile Range (IQR)	6.3%	4.6%
Standard Deviation (Sample)	16.7%	6.4%
Standard Deviation (Population)	16.6%	6.3%

Demographics Similar to Pennsylvania Germans and Immigrants from Italy by Cognitive Disability

In terms of cognitive disability, the demographic groups most similar to Pennsylvania Germans are Immigrants from Peru (16.6%, a difference of 0.0%), Romanian (16.6%, a difference of 0.010%), Immigrants from England (16.6%, a difference of 0.070%), Austrian (16.6%, a difference of 0.080%), and Bhutanese (16.6%, a difference of 0.080%). Similarly, the demographic groups most similar to Immigrants from Italy are Immigrants from North America (16.5%, a difference of 0.0%), Immigrants from Colombia (16.5%, a difference of 0.030%), Immigrants from Europe (16.5%, a difference of 0.040%), Iranian (16.5%, a difference of 0.040%), and Macedonian (16.5%, a difference of 0.050%).

Demographics	Rating \| Rank	Cognitive Disability
Hungarians	99.9 /100 \| #42	Exceptional 16.5%
Immigrants \| Canada	99.8 /100 \| #43	Exceptional 16.5%
Macedonians	99.8 /100 \| #44	Exceptional 16.5%
Immigrants \| Europe	99.8 /100 \| #45	Exceptional 16.5%
Immigrants \| Colombia	99.8 /100 \| #46	Exceptional 16.5%
Immigrants \| Italy	99.8 /100 \| #47	Exceptional 16.5%
Immigrants \| North America	99.8 /100 \| #48	Exceptional 16.5%
Iranians	99.8 /100 \| #49	Exceptional 16.5%
Norwegians	99.8 /100 \| #50	Exceptional 16.5%
Immigrants \| Korea	99.8 /100 \| #51	Exceptional 16.5%
Soviet Union	99.8 /100 \| #52	Exceptional 16.5%
Swedes	99.8 /100 \| #53	Exceptional 16.5%
Immigrants \| Iran	99.8 /100 \| #54	Exceptional 16.5%
Immigrants \| Venezuela	99.7 /100 \| #55	Exceptional 16.5%
Austrians	99.7 /100 \| #56	Exceptional 16.6%
Bhutanese	99.7 /100 \| #57	Exceptional 16.6%
Pennsylvania Germans	99.7 /100 \| #58	Exceptional 16.6%
Immigrants \| Peru	99.7 /100 \| #59	Exceptional 16.6%
Romanians	99.7 /100 \| #60	Exceptional 16.6%
Immigrants \| England	99.6 /100 \| #61	Exceptional 16.6%
Czechoslovakians	99.6 /100 \| #62	Exceptional 16.6%