Question
Which of the following is NOT a secondary source of data?
This question was previously asked in
SSC CGL 2024 (Tier-I) Previous Year Paper (17-Sep-2024) (Shift 3)
The correct answer is
Autobiography
An autobiography is considered a primary source of data because it is the firsthand account of an individual. Secondary sources of data include biographies, research journals, and newspapers, which analyze or report on primary data.
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The ______ is an unbiased estimator of the population mean.
If xi = i / 5 + 2, where i = 1, 2,..., 5, then the mean of x1, x2, ..., x5 is:
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