Italian vs Immigrants from Portugal Vision Disability

The statistical analysis conducted on geographies consisting of 572,776,959 people shows a mild positive correlation between the proportion of Italians and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.322 and weighted average of 2.1%. Similarly, the statistical analysis conducted on geographies consisting of 174,661,842 people shows a poor positive correlation between the proportion of Immigrants from Portugal and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.141 and weighted average of 2.3%, a difference of 9.1%.

Vision Disability Correlation Summary

Measurement	Italian	Immigrants from Portugal
Minimum	0.86%	0.66%
Maximum	8.5%	8.3%
Range	7.6%	7.6%
Mean	2.3%	2.4%
Median	2.0%	2.1%
Interquartile 25% (IQ1)	1.7%	1.8%
Interquartile 75% (IQ3)	2.2%	2.4%
Interquartile Range (IQR)	0.51%	0.59%
Standard Deviation (Sample)	1.2%	1.2%
Standard Deviation (Population)	1.2%	1.2%

Similar Demographics by Vision Disability

Demographics Similar to Italians by Vision Disability

In terms of vision disability, the demographic groups most similar to Italians are Immigrants from Sudan (2.1%, a difference of 0.13%), Finnish (2.1%, a difference of 0.14%), Immigrants from Bosnia and Herzegovina (2.1%, a difference of 0.18%), Ukrainian (2.1%, a difference of 0.23%), and South American (2.1%, a difference of 0.33%).

Demographics	Rating \| Rank	Vision Disability
Immigrants \| Morocco	85.2 /100 \| #139	Excellent 2.1%
Immigrants \| Netherlands	84.2 /100 \| #140	Excellent 2.1%
Sierra Leoneans	84.1 /100 \| #141	Excellent 2.1%
South Americans	82.8 /100 \| #142	Excellent 2.1%
Immigrants \| Sierra Leone	82.8 /100 \| #143	Excellent 2.1%
Ukrainians	81.9 /100 \| #144	Excellent 2.1%
Immigrants \| Bosnia and Herzegovina	81.5 /100 \| #145	Excellent 2.1%
Italians	79.7 /100 \| #146	Good 2.1%
Immigrants \| Sudan	78.4 /100 \| #147	Good 2.1%
Finns	78.3 /100 \| #148	Good 2.1%
Colombians	76.2 /100 \| #149	Good 2.1%
Belgians	75.9 /100 \| #150	Good 2.1%
Immigrants \| Norway	75.5 /100 \| #151	Good 2.1%
Immigrants \| Southern Europe	74.6 /100 \| #152	Good 2.1%
Immigrants \| South America	73.8 /100 \| #153	Good 2.1%

Demographics Similar to Immigrants from Portugal by Vision Disability

In terms of vision disability, the demographic groups most similar to Immigrants from Portugal are Immigrants from Congo (2.3%, a difference of 0.050%), Marshallese (2.3%, a difference of 0.14%), Scottish (2.3%, a difference of 0.21%), Immigrants from Cambodia (2.3%, a difference of 0.27%), and English (2.3%, a difference of 0.29%).

Demographics	Rating \| Rank	Vision Disability
Nicaraguans	2.2 /100 \| #230	Tragic 2.3%
Immigrants \| Ecuador	2.0 /100 \| #231	Tragic 2.3%
German Russians	1.8 /100 \| #232	Tragic 2.3%
Central Americans	1.8 /100 \| #233	Tragic 2.3%
Scottish	1.6 /100 \| #234	Tragic 2.3%
Marshallese	1.5 /100 \| #235	Tragic 2.3%
Immigrants \| Congo	1.4 /100 \| #236	Tragic 2.3%
Immigrants \| Portugal	1.4 /100 \| #237	Tragic 2.3%
Immigrants \| Cambodia	1.1 /100 \| #238	Tragic 2.3%
English	1.1 /100 \| #239	Tragic 2.3%
Panamanians	0.9 /100 \| #240	Tragic 2.3%
Malaysians	0.9 /100 \| #241	Tragic 2.3%
Immigrants \| Panama	0.8 /100 \| #242	Tragic 2.3%
Immigrants \| Nicaragua	0.6 /100 \| #243	Tragic 2.3%
Immigrants \| West Indies	0.6 /100 \| #244	Tragic 2.3%