Explanation:
Income ranges reduce respondent discomfort and non-response by avoiding precise disclosure while still providing usable data for analysis, balancing privacy and research needs.
Read the following statements about frequency distribution: 1. Exclusive class intervals ensure continuity. 2. Inclusive class intervals leave no gaps. 3. Sturges' rule helps determine the number of classes. Which statement(s) is/are correct?
Explanation:
Exclusive intervals (e.g., 0-10, 10-20) are continuous; inclusive intervals (0-9, 10-19) have gaps. Sturges' rule gives k = 1 + 3.322 log N. Statement 2 is wrong because inclusive intervals do have gaps.
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