NCERT Statistics MCQs – Cumulative Frequency and Ogive
NCERT Statistics MCQs – Cumulative Frequency and Ogive
Class: 10 | Subject: Mathematics
Chapter 13: Statistics
Board: CBSE Board Examination (Strictly Based on Latest NCERT Curriculum)
1. Cumulative frequency is:
Correct Answer: B
Explanation: Cumulative frequency is the successive addition of frequencies.
Explanation: Cumulative frequency is the successive addition of frequencies.
2. An ogive is a graph of:
Correct Answer: C
Explanation: Ogive represents cumulative frequency graphically.
Explanation: Ogive represents cumulative frequency graphically.
3. Less than ogive uses:
Correct Answer: B
Explanation: Less than ogive plots cumulative frequency against upper limits.
Explanation: Less than ogive plots cumulative frequency against upper limits.
4. Greater than ogive uses:
Correct Answer: B
Explanation: Greater than ogive plots cumulative frequency against lower limits.
Explanation: Greater than ogive plots cumulative frequency against lower limits.
5. The intersection point of two ogives gives:
Correct: B
Explanation: Intersection of less than and greater than ogives gives median.
Explanation: Intersection of less than and greater than ogives gives median.
6. Total cumulative frequency equals:
Correct: B
Explanation: Final cumulative frequency equals total observations.
Explanation: Final cumulative frequency equals total observations.
7. Ogive graph is generally:
Correct: C
Explanation: Ogive is cumulative frequency curve.
Explanation: Ogive is cumulative frequency curve.
8. If frequencies increase, cumulative frequency:
Correct: C
Explanation: Running total increases.
Explanation: Running total increases.
9. Median from ogive found by:
Correct:A
Explanation: Median corresponds to N/2.
Explanation: Median corresponds to N/2.
10. If N=100, median value plotted at:
Correct:A
Explanation: N/2=50.
Explanation: N/2=50.
11. Cumulative frequency always:
Correct:C
Explanation: It never decreases.
Explanation: It never decreases.
12. Ogive helps in finding:
Correct:A
Explanation: Mainly for median.
Explanation: Mainly for median.
13. First cumulative frequency equals:
Correct:A
Explanation: First value same as first frequency.
Explanation: First value same as first frequency.
14. If frequencies all zero, ogive:
Correct:A
Explanation: Cumulative remains zero.
Explanation: Cumulative remains zero.
15. Graph axes for ogive are:
Correct:A
Explanation: x-axis class limits, y-axis CF.
Explanation: x-axis class limits, y-axis CF.
16. Ogive curve always moves:
Correct:A
Explanation: Because CF increases.
Explanation: Because CF increases.
17. Greater than ogive starts from:
Correct:A
Explanation: Starts from total observations.
Explanation: Starts from total observations.
18. Less than ogive starts from:
Correct:A
Explanation: Starts from zero.
Explanation: Starts from zero.
19. CF table prepared before:
Correct:A
Explanation: Required for plotting.
Explanation: Required for plotting.
20. Ogive useful in finding quartiles?
Correct:A
Explanation: Quartiles can be located from ogive.
Explanation: Quartiles can be located from ogive.
