Which graphical representation uses cumulative frequencies? MCQ with Answer and Explanation
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Question #1
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Which of the following statements about the schedule method is correct?
Correct Answer: Option C
Explanation:
Schedule method uses trained enumerators; it's costlier but yields better quality and higher response rate, suitable for illiterates.
Schedule method uses trained enumerators; it's costlier but yields better quality and higher response rate, suitable for illiterates.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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If a dataset has a mean of 100 and a coefficient of variation of 20%, the standard deviation is:
Correct Answer: Option A
Explanation:
Coefficient of variation (CV) = (SD / Mean) × 100. So 20 = (SD / 100) × 100 → SD = 20. CV standardizes dispersion relative to the mean.
Coefficient of variation (CV) = (SD / Mean) × 100. So 20 = (SD / 100) × 100 → SD = 20. CV standardizes dispersion relative to the mean.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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In a frequency distribution with unequal class intervals, the heights of rectangles in a histogram are proportional to:
Correct Answer: Option A
Explanation:
When class widths differ, area represents frequency, so height = frequency / width.
When class widths differ, area represents frequency, so height = frequency / width.
This question belongs to:
Accountancy and Statistics
Statistics
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