Tongan vs Afghan 8th Grade
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Tongan
 Afghan
 8th Grade
8th Grade Comparison
Tongans
Afghans
95.1%
8TH GRADE
1.7/ 100
METRIC RATING
242nd/ 347
METRIC RANK
94.9%
8TH GRADE
0.6/ 100
METRIC RATING
257th/ 347
METRIC RANK
Tongan vs Afghan 8th Grade Correlation Chart
The statistical analysis conducted on geographies consisting of 102,873,790 people shows a mild positive correlation between the proportion of Tongans and percentage of population with at least 8th grade education in the United States with a correlation coefficient (R) of 0.390 and weighted average of 95.1%. Similarly, the statistical analysis conducted on geographies consisting of 148,851,685 people shows a poor positive correlation between the proportion of Afghans and percentage of population with at least 8th grade education in the United States with a correlation coefficient (R) of 0.176 and weighted average of 94.9%, a difference of 0.17%.
 
8th Grade Correlation Summary
| Measurement | Tongan | Afghan | 
| Minimum | 89.4% | 87.7% | 
| Maximum | 100.0% | 100.0% | 
| Range | 10.6% | 12.3% | 
| Mean | 96.4% | 95.3% | 
| Median | 96.8% | 95.3% | 
| Interquartile 25% (IQ1) | 95.1% | 94.1% | 
| Interquartile 75% (IQ3) | 98.3% | 96.9% | 
| Interquartile Range (IQR) | 3.2% | 2.8% | 
| Standard Deviation (Sample) | 2.5% | 2.7% | 
| Standard Deviation (Population) | 2.5% | 2.7% | 
Demographics Similar to Tongans and Afghans by 8th Grade
In terms of 8th grade, the demographic groups most similar to Tongans are Paiute (95.1%, a difference of 0.0%), Immigrants from Middle Africa (95.1%, a difference of 0.0%), Ethiopian (95.1%, a difference of 0.020%), South American Indian (95.1%, a difference of 0.020%), and Immigrants from Sierra Leone (95.1%, a difference of 0.030%). Similarly, the demographic groups most similar to Afghans are Colombian (95.0%, a difference of 0.010%), Immigrants from Congo (94.9%, a difference of 0.010%), Ghanaian (94.9%, a difference of 0.010%), Immigrants from Somalia (95.0%, a difference of 0.020%), and Immigrants from Cameroon (95.0%, a difference of 0.040%).
| Demographics | Rating | Rank | 8th Grade | 
| Immigrants | Sierra Leone | 2.1 /100 | #239  | Tragic 95.1%  | 
| Ethiopians | 2.0 /100 | #240  | Tragic 95.1%  | 
| South American Indians | 1.9 /100 | #241  | Tragic 95.1%  | 
| Tongans | 1.7 /100 | #242  | Tragic 95.1%  | 
| Paiute | 1.7 /100 | #243  | Tragic 95.1%  | 
| Immigrants | Middle Africa | 1.7 /100 | #244  | Tragic 95.1%  | 
| Jamaicans | 1.4 /100 | #245  | Tragic 95.1%  | 
| Somalis | 1.4 /100 | #246  | Tragic 95.1%  | 
| Immigrants | Senegal | 1.4 /100 | #247  | Tragic 95.1%  | 
| Uruguayans | 1.2 /100 | #248  | Tragic 95.1%  | 
| Immigrants | China | 1.1 /100 | #249  | Tragic 95.0%  | 
| Koreans | 1.1 /100 | #250  | Tragic 95.0%  | 
| Bolivians | 1.0 /100 | #251  | Tragic 95.0%  | 
| Immigrants | Ethiopia | 1.0 /100 | #252  | Tragic 95.0%  | 
| U.S. Virgin Islanders | 0.9 /100 | #253  | Tragic 95.0%  | 
| Immigrants | Cameroon | 0.8 /100 | #254  | Tragic 95.0%  | 
| Immigrants | Somalia | 0.7 /100 | #255  | Tragic 95.0%  | 
| Colombians | 0.7 /100 | #256  | Tragic 95.0%  | 
| Afghans | 0.6 /100 | #257  | Tragic 94.9%  | 
| Immigrants | Congo | 0.6 /100 | #258  | Tragic 94.9%  | 
| Ghanaians | 0.6 /100 | #259  | Tragic 94.9%  |