Given below are some statements. Read them carefully and choose the correct statement (s) from the given options.

Statement 1: Sample survey is also known as Method of Complete Enumeration.

Statement 2: Since 1901, in a period of 110 years, the population of India has increased by more than 100 crore.

None of the given statement is correct.

The correct answer is option 4: None of the given statement is correct.

A survey, which includes every element of the population, is known as Census or the Method of Complete Enumeration. If certain agencies are interested in studying the total population in India, they have to obtain information from all the households in rural and urban India. It is carried out every ten years. A house-to-house enquiry is carried out, covering all households in India. Demographic data on birth and death rates, literacy, employment, life expectancy, size and composition of population, etc., are collected and published by the Registrar General of India. The last Census of India was held in 2011.

According to the Census 2011, population of India was 121.09 crore, which was 102.87 crore in 2001. Census 1901 indicated that the population of the country was 23.83 crore. Since then, in a period of 110 years, the population of the country has increased by more than 97 crore. The average annual growth rate of population which was 2.2 per cent per year in the decade 1971-81 came down to 1.97 per cent in 1991-2001 and 1.64 per cent during 2001-2011.