Answer:
16 lakhs per family
Explanation:
Per capita income is the mean income of the people in an economic unit. An economic unit may be a city or country. It is calculated by taking the sum of all sources of income and dividing it by the total population.
There are five families in a country and their income is 15 lakhs, 20 lakhs , 12 lakhs, 8 lakhs and 25 lakhs.
First, let's take the sum of the income.
Sum=15+20+12+8+25=80
Average=80÷5=16
The per capita income of the country is 16 lakhs per family.
Note that:
1 lakh=100,000
 
        
             
        
        
        
I believe the answer is: valid, but not reliable
A result would be considered as valid if it is created by using proper logical thought or common way of reasoning. But, such result on personality would not be considered to be reliable because there are too many factors that could create a deviation within the data, and there is no accurate way to truly measure personality.
 
        
                    
             
        
        
        
Answer:They have at least 1 million residents
Explanation:
 
        
             
        
        
        
Answer:
heredity 
Explanation:
According to various researchers, the aspect of identical twins is more significantly described in terms of the relation of heredity and environment. It is more generously described by keeping identical twins in the first place because they share similar genes or genetic compound.
The research has shown that identical shares most of the genetic material as compared to the fraternal twins. Psychologists and researchers have described that identical twins are also being identified based on the intelligence levels by keeping them in different environments. However, the intelligence of an individual is based 60% on the genetic composition whereas 40% on the environmental factors as per the various research that has been conducted.