Statistics
Karnataka Board · Class 9 · Mathematics
Most important questions from Statistics for Karnataka Board Class 9 Mathematics board exam 2026. MCQs, short answer, and long answer questions with marks.
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Sample Questions
A bar graph shows the number of books read by students in different months. If January shows 15 books, February shows 20 books, March shows 12 books, and April shows 18 books, what is the total number of books read in these four months?
In a frequency distribution table, a class interval is 20-30. What is the class mark (mid-point) of this interval?
A histogram shows the heights of students. If the class interval 150-160 cm has a frequency of 12 students and the width is 10 cm, what would be the height of the rectangle in the histogram if 1 cm on the y-axis represents 2 students?
A frequency polygon is drawn for the marks obtained by students. The points plotted are (15, 3), (25, 7), (35, 12), (45, 8), (55, 4). What is the total frequency represented by this polygon?
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Sources & Official References
- Karnataka SSLC — kseeb.kar.nic.in
- Dept of Pre-University Education, Karnataka
- National Education Policy 2020 — education.gov.in
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