Costa Rican vs Immigrants from Poland 9th Grade

The statistical analysis conducted on geographies consisting of 253,601,730 people shows a poor positive correlation between the proportion of Costa Ricans and percentage of population with at least 9th grade education in the United States with a correlation coefficient (R) of 0.130 and weighted average of 94.3%. Similarly, the statistical analysis conducted on geographies consisting of 304,861,877 people shows a moderate positive correlation between the proportion of Immigrants from Poland and percentage of population with at least 9th grade education in the United States with a correlation coefficient (R) of 0.406 and weighted average of 94.9%, a difference of 0.59%.

9th Grade Correlation Summary

Measurement	Costa Rican	Immigrants from Poland
Minimum	85.3%	90.0%
Maximum	100.0%	100.0%
Range	14.7%	10.0%
Mean	94.5%	94.9%
Median	94.7%	94.9%
Interquartile 25% (IQ1)	92.9%	93.5%
Interquartile 75% (IQ3)	96.9%	95.9%
Interquartile Range (IQR)	4.0%	2.3%
Standard Deviation (Sample)	3.5%	2.5%
Standard Deviation (Population)	3.4%	2.4%

Similar Demographics by 9th Grade

Demographics Similar to Costa Ricans by 9th Grade

In terms of 9th grade, the demographic groups most similar to Costa Ricans are Nigerian (94.3%, a difference of 0.010%), Bolivian (94.3%, a difference of 0.010%), Immigrants from Panama (94.3%, a difference of 0.020%), Immigrants from Africa (94.3%, a difference of 0.020%), and Apache (94.3%, a difference of 0.030%).

Demographics	Rating \| Rank	9th Grade
Immigrants \| Sierra Leone	4.8 /100 \| #227	Tragic 94.4%
Lumbee	4.7 /100 \| #228	Tragic 94.4%
Immigrants \| Southern Europe	4.5 /100 \| #229	Tragic 94.3%
Apache	4.2 /100 \| #230	Tragic 94.3%
Immigrants \| Panama	4.0 /100 \| #231	Tragic 94.3%
Immigrants \| Africa	3.9 /100 \| #232	Tragic 94.3%
Nigerians	3.7 /100 \| #233	Tragic 94.3%
Costa Ricans	3.5 /100 \| #234	Tragic 94.3%
Bolivians	3.3 /100 \| #235	Tragic 94.3%
Somalis	2.9 /100 \| #236	Tragic 94.3%
Koreans	2.9 /100 \| #237	Tragic 94.3%
South American Indians	2.8 /100 \| #238	Tragic 94.3%
Immigrants \| China	2.8 /100 \| #239	Tragic 94.3%
Immigrants \| Ethiopia	2.7 /100 \| #240	Tragic 94.3%
Spanish Americans	2.6 /100 \| #241	Tragic 94.2%

Demographics Similar to Immigrants from Poland by 9th Grade

In terms of 9th grade, the demographic groups most similar to Immigrants from Poland are Immigrants from Venezuela (94.9%, a difference of 0.0%), Immigrants from Iraq (94.9%, a difference of 0.010%), Immigrants from Egypt (94.9%, a difference of 0.020%), Brazilian (94.9%, a difference of 0.020%), and Immigrants from Spain (94.9%, a difference of 0.020%).

Demographics	Rating \| Rank	9th Grade
Colville	58.5 /100 \| #171	Average 94.9%
Iraqis	54.0 /100 \| #172	Average 94.9%
Cheyenne	51.5 /100 \| #173	Average 94.9%
Immigrants \| Egypt	50.0 /100 \| #174	Average 94.9%
Brazilians	49.8 /100 \| #175	Average 94.9%
Immigrants \| Spain	49.1 /100 \| #176	Average 94.9%
Immigrants \| Iraq	47.8 /100 \| #177	Average 94.9%
Immigrants \| Poland	46.7 /100 \| #178	Average 94.9%
Immigrants \| Venezuela	46.5 /100 \| #179	Average 94.9%
Immigrants \| Uganda	43.1 /100 \| #180	Average 94.8%
Sierra Leoneans	42.7 /100 \| #181	Average 94.8%
Seminole	42.5 /100 \| #182	Average 94.8%
Immigrants \| Nepal	39.7 /100 \| #183	Fair 94.8%
Argentineans	37.6 /100 \| #184	Fair 94.8%
Liberians	37.4 /100 \| #185	Fair 94.8%