In a random experiment, the set of all possible outcomes is known as the: MCQ with Answer and Explanation
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Question #1
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Which sampling method is MOST appropriate for collecting primary data from a heterogeneous population with distinct subgroups?
Correct Answer: Option A
Explanation:
Stratified sampling divides the population into homogeneous subgroups (strata) and samples from each, ensuring representation of all key segments and improving precision for subgroup analysis.
Stratified sampling divides the population into homogeneous subgroups (strata) and samples from each, ensuring representation of all key segments and improving precision for subgroup analysis.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If the mean of a set of 10 observations is 20, and 5 is added to each observation, what will be the new mean?
Correct Answer: Option A
Explanation:
The arithmetic mean is affected by the change of origin. If a constant is added to all observations, the mean increases by that constant.
The arithmetic mean is affected by the change of origin. If a constant is added to all observations, the mean increases by that constant.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Vital registration systems are most effective when they are:
Correct Answer: Option C
Explanation:
Effective vital registration requires legal mandate for reporting all births/deaths, nationwide coverage, and ongoing operation to provide complete, timely data for demographic analysis and policy.
Effective vital registration requires legal mandate for reporting all births/deaths, nationwide coverage, and ongoing operation to provide complete, timely data for demographic analysis and policy.
This question belongs to:
Accountancy and Statistics
Statistics
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