Tongan vs Costa Rican 9th Grade
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Tongan
Costa Rican
9th Grade
9th Grade Comparison
Tongans
Costa Ricans
94.4%
9TH GRADE
6.0/ 100
METRIC RATING
224th/ 347
METRIC RANK
94.3%
9TH GRADE
3.5/ 100
METRIC RATING
234th/ 347
METRIC RANK
Tongan vs Costa Rican 9th Grade Correlation Chart
The statistical analysis conducted on geographies consisting of 102,873,790 people shows a moderate positive correlation between the proportion of Tongans and percentage of population with at least 9th grade education in the United States with a correlation coefficient (R) of 0.411 and weighted average of 94.4%. Similarly, 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%, a difference of 0.10%.
9th Grade Correlation Summary
| Measurement | Tongan | Costa Rican |
| Minimum | 88.1% | 85.3% |
| Maximum | 100.0% | 100.0% |
| Range | 11.9% | 14.7% |
| Mean | 95.8% | 94.5% |
| Median | 96.3% | 94.7% |
| Interquartile 25% (IQ1) | 94.4% | 92.9% |
| Interquartile 75% (IQ3) | 97.9% | 96.9% |
| Interquartile Range (IQR) | 3.5% | 4.0% |
| Standard Deviation (Sample) | 2.8% | 3.5% |
| Standard Deviation (Population) | 2.8% | 3.4% |
Demographics Similar to Tongans and Costa Ricans by 9th Grade
In terms of 9th grade, the demographic groups most similar to Tongans are Ethiopian (94.4%, a difference of 0.020%), Subsaharan African (94.4%, a difference of 0.020%), Bahamian (94.4%, a difference of 0.030%), Immigrants from Sierra Leone (94.4%, a difference of 0.040%), and Immigrants from Asia (94.4%, a difference of 0.050%). Similarly, 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 |
| Africans | 9.0 /100 | #219 | Tragic 94.5% |
| Indians (Asian) | 8.6 /100 | #220 | Tragic 94.5% |
| Immigrants | Eastern Africa | 8.2 /100 | #221 | Tragic 94.5% |
| Immigrants | Asia | 7.7 /100 | #222 | Tragic 94.4% |
| Bahamians | 7.0 /100 | #223 | Tragic 94.4% |
| Tongans | 6.0 /100 | #224 | Tragic 94.4% |
| Ethiopians | 5.4 /100 | #225 | Tragic 94.4% |
| Sub-Saharan Africans | 5.4 /100 | #226 | Tragic 94.4% |
| 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% |