III Answer the following questions in a word/Sentence
7. What is economics according to Alfred Marshall?
8. Give the meaning of statistics in plural sense
9. Give the meaning of sampling error
10. What is a vanable?
11. Expand NSSO
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7.British economist Alfred Marshall defined economics as the study of man in the ordinary business of life. Marshall argued that the subject was both the study of wealth and the study of mankind.
8.In plural sense, statistics refers to information in terms of numbers or numerical data.
9.Sampling error is the difference between a population parameter and a sample statistic used to estimate it. For example, the difference between a population mean and a sample mean is sampling error.
10?
11.
The Full form of NSSO is National Sample Survey Office. It is an organization under the Ministry of Statistics and Programme Implementation of the Government of India.
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