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Class 9 Maths Chapter 14 Statistics Quiz 2 (25 MCQs)

Quiz Instructions

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1. Roger has the following data:12, 10, 3, 5, 6Susan has the following data:5, 9, 4, 5, 6Who has the data with the highest median and what is it?
2. Facts which are numerical or otherwise collected with a definite purpose are called
3. Statistics is for
4. Find the average (mean) of these numbers:5, 11, 2, 12, 4, 2
5. What is the mean?4, 5, 6, 7, 3, 4, 10, 1
6. The consecutive class marks of a data having continuous class intervals having class width as 5, have a gap of ..... between them.
7. The range of data 27, 18, 19, 21, 25, 35, 38 is .....
8. Find the class width for the grouped frequency distribution of the class intervals 1-20, 21-40, 41-60, .....
9. The information collected from a source which had already been recorded say from registers is called
10. The grades of 5 students are:4, 6, 6, 8 and 10. The mean grade is:
11. -information being collected
12. Mean is
13. Mean of 3, 5, 4, 1, 7 is
14. Which of the following variables are discrete? 1. Size of shoes, 2. Number of pages in a book, 3. Distance travelled by a train, 4. Time
15. A data is such that its minimum value is 86 and range is 32 then maximum value of data is.
16. Class mark of the first class interval is 5 and there are five classes.If the class size is 10, then the last class interval is
17. To analyse the election results, the data is collected from a newspapers. The data thus collected is known as
18. A survey should always be ..... and .....
19. The median of first n natural numbers is
20. Data are said to be ..... if the investigator himself is responsible for the collection of data.
21. The statistical data can be represented by:
22. The class marks of a frequency distribution are given as:15, 20, 25, ..... The class corresponding to the class mark 20 is .....
23. In the class interval 10-20, 20-30, the number 20 is included in .....
24. Histogram for continuous frequency distribution having unequal class interval can't be plotted
25. Mode of 3, 4, 7, 2, 4, 7, 6, 1, 6, 8, 6, 9, 6 is
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