Answer:
Case-Control Study
Explanation:
A case–control study is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute
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
2 negatives is that they caused war, and killed indians
2 positives are they discovered new land to develope maps, and unlocked new trades routes
hope my answer helped!!^-^
