A researcher wants to ensure every individual in a population has an equal chance of being selected. She should use: MCQ with Answer and Explanation
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Question #1
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When the base year of a fixed base index series is changed from 2010 to 2015, the new index for 2020 is obtained by:
Correct Answer: Option D
Explanation:
New index = (Old index for target year / Old index for new base year) × 100.
New index = (Old index for target year / Old index for new base year) × 100.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Total Fertility Rate (TFR) is obtained by summing age-specific fertility rates and multiplying by:
Correct Answer: Option B
Explanation:
Because each ASFR is per 1000 women for a 5-year span, the sum is multiplied by 5 to give children per woman.
Because each ASFR is per 1000 women for a 5-year span, the sum is multiplied by 5 to give children per woman.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Which of the following averages cannot be calculated if a dataset contains a zero?
Correct Answer: Option C
Explanation:
Harmonic mean involves reciprocals, so zero makes it undefined. Geometric mean with zero is zero, but it is defined; arithmetic and median unaffected.
Harmonic mean involves reciprocals, so zero makes it undefined. Geometric mean with zero is zero, but it is defined; arithmetic and median unaffected.
This question belongs to:
Accountancy and Statistics
Statistics
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