Class 9 · ICSE · Mathematics

Statistics

Collection and tabulation of data, graphical representation, and mean and median of ungrouped data.

Questions

9 questions in this chapter.

Answer available
Class 9 · Mathematics · Statistics
What is a frequency polygon and how is it drawn?
3 marksMediumShort answer
Answer available
Class 9 · Mathematics · Statistics
The mean of 6 numbers is 20. If one number is removed the mean of the rest is 22. Find the number removed.
3 marksMediumNumerical
Answer available
Class 9 · Mathematics · Statistics
Find the median of 7, 3, 9, 12, 5 and 14.
2 marksEasyNumerical
Answer available
Class 9 · Mathematics · Statistics
Find the mean, median and mode of 5, 7, 7, 8, 9, 10, 12.
3 marksMediumNumerical
Answer available
Class 9 · Mathematics · Statistics
The mean of eight numbers is 15. If each number is increased by 2, find the new mean.
3 marksMediumNumerical
Answer available
Class 9 · Mathematics · Statistics
The mode of 4, 5, 5, 6, 7, 5, 8 is:
1 markEasyMCQ
Answer available
Class 9 · Mathematics · Statistics
Find the mean of 12, 15, 18, 20 and 25.
2 marksEasyNumerical
Answer available
Class 9 · Mathematics · Statistics
Distinguish between raw data and a frequency distribution.
3 marksMediumShort answer
Answer available
Class 9 · Mathematics · Statistics
Find the mean of the first five prime numbers.
2 marksEasyNumerical