Scotch-Irish vs Immigrants from Portugal Average Family Size

The statistical analysis conducted on geographies consisting of 548,372,805 people shows a slight negative correlation between the proportion of Scotch-Irish and average family size in the United States with a correlation coefficient (R) of -0.056 and weighted average of 3.11. Similarly, the statistical analysis conducted on geographies consisting of 174,766,763 people shows a moderate negative correlation between the proportion of Immigrants from Portugal and average family size in the United States with a correlation coefficient (R) of -0.426 and weighted average of 3.18, a difference of 2.5%.

Average Family Size Correlation Summary

Measurement	Scotch-Irish	Immigrants from Portugal
Minimum	1.34	2.00
Maximum	6.29	3.95
Range	4.95	1.95
Mean	3.03	3.10
Median	3.00	3.09
Interquartile 25% (IQ1)	2.73	2.89
Interquartile 75% (IQ3)	3.38	3.26
Interquartile Range (IQR)	0.65	0.37
Standard Deviation (Sample)	0.77	0.35
Standard Deviation (Population)	0.77	0.35

Similar Demographics by Average Family Size

Demographics Similar to Scotch-Irish by Average Family Size

In terms of average family size, the demographic groups most similar to Scotch-Irish are Latvian (3.11, a difference of 0.0%), Scottish (3.11, a difference of 0.0%), Estonian (3.10, a difference of 0.050%), Lithuanian (3.10, a difference of 0.050%), and Belgian (3.11, a difference of 0.060%).

Demographics	Rating \| Rank	Average Family Size
Celtics	0.0 /100 \| #324	Tragic 3.11
English	0.0 /100 \| #325	Tragic 3.11
Ottawa	0.0 /100 \| #326	Tragic 3.11
Dutch	0.0 /100 \| #327	Tragic 3.11
Czechs	0.0 /100 \| #328	Tragic 3.11
Belgians	0.0 /100 \| #329	Tragic 3.11
Latvians	0.0 /100 \| #330	Tragic 3.11
Scotch-Irish	0.0 /100 \| #331	Tragic 3.11
Scottish	0.0 /100 \| #332	Tragic 3.11
Estonians	0.0 /100 \| #333	Tragic 3.10
Lithuanians	0.0 /100 \| #334	Tragic 3.10
Luxembourgers	0.0 /100 \| #335	Tragic 3.10
Irish	0.0 /100 \| #336	Tragic 3.10
Swedes	0.0 /100 \| #337	Tragic 3.10
French	0.0 /100 \| #338	Tragic 3.10

Demographics Similar to Immigrants from Portugal by Average Family Size

In terms of average family size, the demographic groups most similar to Immigrants from Portugal are Immigrants from Turkey (3.18, a difference of 0.010%), Iranian (3.18, a difference of 0.030%), Brazilian (3.18, a difference of 0.040%), Immigrants from Romania (3.18, a difference of 0.050%), and Romanian (3.18, a difference of 0.050%).

Demographics	Rating \| Rank	Average Family Size
Immigrants \| Italy	5.3 /100 \| #229	Tragic 3.19
Icelanders	5.2 /100 \| #230	Tragic 3.19
Basques	5.2 /100 \| #231	Tragic 3.19
Cherokee	4.7 /100 \| #232	Tragic 3.18
Brazilians	4.5 /100 \| #233	Tragic 3.18
Iranians	4.5 /100 \| #234	Tragic 3.18
Immigrants \| Turkey	4.2 /100 \| #235	Tragic 3.18
Immigrants \| Portugal	4.2 /100 \| #236	Tragic 3.18
Immigrants \| Romania	3.7 /100 \| #237	Tragic 3.18
Romanians	3.7 /100 \| #238	Tragic 3.18
Houma	3.4 /100 \| #239	Tragic 3.18
Osage	3.2 /100 \| #240	Tragic 3.18
Immigrants \| Japan	3.0 /100 \| #241	Tragic 3.18
Hungarians	3.0 /100 \| #242	Tragic 3.18
Immigrants \| Moldova	2.9 /100 \| #243	Tragic 3.18