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What is Class 11 Statistics: Data Collection Methods about?

The document discusses the sources of data collection in statistics, distinguishing between primary and secondary data, and outlines their advantages and disadvantages. It details methods for collecting primary data, including personal interviews, mailing surveys, and telephone interviews, along with their respective pros and cons. Additionally, it covers concepts of census and sample surveys, sampling errors, and the role of agencies like the Census of India and NSSO in collecting and processing statistica

Author

uttammandoli21

Language

EN