Which of the following data collection methods is most suitable when the area of investigation is large and funds are limited? MCQ with Answer and Explanation
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Question #1
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If a dataset has values ranging from 10 to 95 and you decide to use a class width of 10, how many classes would be needed for an exclusive frequency distribution?
Correct Answer: Option A
Explanation:
Range = 95 - 10 = 85. Number of classes = Range / Class width = 85 / 10 = 8.5, rounded up to 9 classes to cover the entire data range without gaps.
Range = 95 - 10 = 85. Number of classes = Range / Class width = 85 / 10 = 8.5, rounded up to 9 classes to cover the entire data range without gaps.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If a population has a high infant mortality rate, its life expectancy at birth is likely:
Correct Answer: Option C
Explanation:
High infant deaths reduce the average life expectancy.
High infant deaths reduce the average life expectancy.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Assertion (A): Primary data collection is generally more time-consuming than secondary data collection. Reason (R): Primary data requires designing instruments, sampling, and fieldwork, whereas secondary data is readily available.
Correct Answer: Option B
Explanation:
Primary data collection involves extensive planning, instrument design, sampling, and field execution, making it inherently more time-intensive than accessing pre-existing secondary data.
Primary data collection involves extensive planning, instrument design, sampling, and field execution, making it inherently more time-intensive than accessing pre-existing secondary data.
This question belongs to:
Accountancy and Statistics
Statistics
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