Standardized Death Rate (SDR) is expressed per: MCQ with Answer and Explanation
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Question #1
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Which of the following is a direct source of demographic data?
Correct Answer: Option B
Explanation:
All are sources that provide demographic data, though census and registration are more traditional.
All are sources that provide demographic data, though census and registration are more traditional.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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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?
Correct Answer: Option D
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.
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.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Weighted mean is preferred over simple arithmetic mean when:
Correct Answer: Option D
Explanation:
Weighted mean assigns different weights to observations based on their relative importance, providing a more accurate central value when some data points carry more significance than others.
Weighted mean assigns different weights to observations based on their relative importance, providing a more accurate central value when some data points carry more significance than others.
This question belongs to:
Accountancy and Statistics
Statistics
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