Which graph is generally used to represent continuous grouped data with adjoining class intervals?
Correct answer: A. Histogram
- A. Histogram
- B. Bar chart
- C. Pie chart
- D. Pictogram
Explanation
A histogram uses adjoining rectangles because continuous class intervals share boundaries. Ordinary bar charts usually have gaps between separate categories.
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About Data Collection and Presentation
Data collection covers primary and secondary sources, qualitative and quantitative data, discrete and continuous variables, sampling methods and questionnaire design. Presentation includes frequency tables, grouped data, bar charts, histograms, pie charts, line graphs and cumulative frequency curves, with care over class intervals and misleading scales.
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30 free Data Collection and Presentation MCQs from Quantitative Methods, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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