Immigrants from Iran vs Portuguese Married-couple Households

The statistical analysis conducted on geographies consisting of 279,826,479 people shows a poor positive correlation between the proportion of Immigrants from Iran and percentage of married-couple family households in the United States with a correlation coefficient (R) of 0.137 and weighted average of 48.8%. Similarly, the statistical analysis conducted on geographies consisting of 449,970,895 people shows no correlation between the proportion of Portuguese and percentage of married-couple family households in the United States with a correlation coefficient (R) of -0.042 and weighted average of 47.8%, a difference of 2.1%.

Married-couple Households Correlation Summary

Measurement	Immigrants from Iran	Portuguese
Minimum	24.8%	21.9%
Maximum	80.5%	82.5%
Range	55.7%	60.6%
Mean	53.5%	49.0%
Median	52.7%	49.8%
Interquartile 25% (IQ1)	46.2%	42.6%
Interquartile 75% (IQ3)	57.6%	53.9%
Interquartile Range (IQR)	11.3%	11.3%
Standard Deviation (Sample)	12.6%	10.9%
Standard Deviation (Population)	12.6%	10.9%

Similar Demographics by Married-couple Households

Demographics Similar to Immigrants from Iran by Married-couple Households

In terms of married-couple households, the demographic groups most similar to Immigrants from Iran are Welsh (48.8%, a difference of 0.050%), Immigrants from Vietnam (48.8%, a difference of 0.060%), Immigrants from Eastern Asia (48.8%, a difference of 0.080%), Immigrants from Lebanon (48.9%, a difference of 0.10%), and Tsimshian (48.7%, a difference of 0.13%).

Demographics	Rating \| Rank	Married-couple Households
Iranians	99.7 /100 \| #36	Exceptional 49.0%
Sri Lankans	99.7 /100 \| #37	Exceptional 49.0%
Greeks	99.7 /100 \| #38	Exceptional 48.9%
Lithuanians	99.6 /100 \| #39	Exceptional 48.9%
Immigrants \| Bolivia	99.6 /100 \| #40	Exceptional 48.9%
Immigrants \| Lebanon	99.6 /100 \| #41	Exceptional 48.9%
Immigrants \| Vietnam	99.6 /100 \| #42	Exceptional 48.8%
Immigrants \| Iran	99.6 /100 \| #43	Exceptional 48.8%
Welsh	99.5 /100 \| #44	Exceptional 48.8%
Immigrants \| Eastern Asia	99.5 /100 \| #45	Exceptional 48.8%
Tsimshian	99.5 /100 \| #46	Exceptional 48.7%
British	99.5 /100 \| #47	Exceptional 48.7%
Indians (Asian)	99.4 /100 \| #48	Exceptional 48.7%
Immigrants \| Sri Lanka	99.4 /100 \| #49	Exceptional 48.7%
Samoans	99.4 /100 \| #50	Exceptional 48.7%

Demographics Similar to Portuguese by Married-couple Households

In terms of married-couple households, the demographic groups most similar to Portuguese are Immigrants from Czechoslovakia (47.8%, a difference of 0.010%), Immigrants from South Africa (47.8%, a difference of 0.11%), Slavic (47.8%, a difference of 0.12%), Hawaiian (47.8%, a difference of 0.12%), and Turkish (47.8%, a difference of 0.14%).

Demographics	Rating \| Rank	Married-couple Households
Immigrants \| Austria	96.4 /100 \| #99	Exceptional 47.9%
Immigrants \| Italy	96.3 /100 \| #100	Exceptional 47.9%
Turks	96.1 /100 \| #101	Exceptional 47.8%
Slavs	96.0 /100 \| #102	Exceptional 47.8%
Hawaiians	96.0 /100 \| #103	Exceptional 47.8%
Immigrants \| South Africa	96.0 /100 \| #104	Exceptional 47.8%
Immigrants \| Czechoslovakia	95.5 /100 \| #105	Exceptional 47.8%
Portuguese	95.5 /100 \| #106	Exceptional 47.8%
Estonians	94.7 /100 \| #107	Exceptional 47.7%
Immigrants \| Japan	94.4 /100 \| #108	Exceptional 47.7%
Immigrants \| Jordan	94.1 /100 \| #109	Exceptional 47.7%
Macedonians	93.9 /100 \| #110	Exceptional 47.6%
Syrians	93.9 /100 \| #111	Exceptional 47.6%
Peruvians	93.8 /100 \| #112	Exceptional 47.6%
Venezuelans	93.8 /100 \| #113	Exceptional 47.6%