Sierra Leonean vs Immigrants from Portugal Vision Disability

The statistical analysis conducted on geographies consisting of 83,336,736 people shows a weak positive correlation between the proportion of Sierra Leoneans and percentage of population with vision disability in the United States with a correlation coefficient (R) of 0.288 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 9.6%.

Vision Disability Correlation Summary

Measurement	Sierra Leonean	Immigrants from Portugal
Minimum	0.61%	0.66%
Maximum	5.8%	8.3%
Range	5.2%	7.6%
Mean	2.0%	2.4%
Median	1.9%	2.1%
Interquartile 25% (IQ1)	1.4%	1.8%
Interquartile 75% (IQ3)	2.4%	2.4%
Interquartile Range (IQR)	1.0%	0.59%
Standard Deviation (Sample)	0.92%	1.2%
Standard Deviation (Population)	0.91%	1.2%

Similar Demographics by Vision Disability

Demographics Similar to Sierra Leoneans by Vision Disability

In terms of vision disability, the demographic groups most similar to Sierra Leoneans are Immigrants from Netherlands (2.1%, a difference of 0.010%), Immigrants from Morocco (2.1%, a difference of 0.13%), South American (2.1%, a difference of 0.15%), Immigrants from Sierra Leone (2.1%, a difference of 0.15%), and Ukrainian (2.1%, a difference of 0.25%).

Demographics	Rating \| Rank	Vision Disability
Venezuelans	87.2 /100 \| #134	Excellent 2.1%
Vietnamese	86.7 /100 \| #135	Excellent 2.1%
Czechs	86.3 /100 \| #136	Excellent 2.1%
Immigrants \| South Eastern Asia	86.3 /100 \| #137	Excellent 2.1%
Arabs	86.3 /100 \| #138	Excellent 2.1%
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%

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%