Data Handling and Presentation — Important Questions
CBSE · Class 6 · Mathematics
43 important questions from Data Handling and Presentation for CBSE Class 6 Mathematics, with answers. Part of the CBSE Class 6 Mathematics syllabus.
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Important Questions from Data Handling and Presentation
Which of these activities require data collection? (Select all correct options)
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Finding favorite sport in class, Measuring heights of classmates, Counting birds in school garden
Data collection involves gathering information through observation or surveys. Finding capitals or calendar facts are already known information that doesn't require collection.
In a pictograph showing vehicle data, if 🚗 = 10 cars and there are 2.5 symbols for trucks, how many trucks are represented?
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25
Calculate: 2.5 × 10 = 25 trucks. Half symbol represents half the scale value, so 0.5 × 10 = 5, plus 2 full symbols (2 × 10 = 20) gives 25 total.
Data arranged in ascending order: 2, 4, 4, 6, 8, 8, 8, 10. What is the most frequent value?
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8
Count frequencies: 2(1), 4(2), 6(1), 8(3), 10(1). The value 8 appears 3 times, which is the highest frequency (mode).
A bar graph uses scale 1 unit = 20 students. If a bar is 4 units high, how many students does it represent?
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80
Multiply bar height by scale: 4 units × 20 students/unit = 80 students. The scale tells us what each unit length represents.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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