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Class 9 Maths Chapter 14 Statistics Quiz 3 (21 MCQs)

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1. Class mark of 90-120 is 15
2. Mean of 6, 8, 4, 12, x is 7 then value of x
3. The monthly pocket money of six children is as follows ₹ 105, ₹ 130, ₹ 140, ₹ 50, ₹ 25, ₹ 45i) What is the highest pocket money?
4. Class size for the following distribution:0-0.25, 0.25-0.50, 0.50-0.75 is
5. What is the range of the following set of data?15, 25, 33, 33, 42, 47
6. The closed curve representing continuous grouped frequency distribution is called .....
7. The class mark of the class interval 3.7-8.3 is .....
8. What is the median of the following set of data?70, 80, 92, 98
9. The per capita income of India for the last 30 years noted by the investigator from The Times of India is an example of ..... data.
10. The information was collected by the investigator with a definite objective, the data obtained is called
11. -center number of a data set
12. Which statement is trueExplain the meaning of range of data?
13. -most frequently occurring number in a data set
14. The monthly pocket money of six children is as follows ₹ 105, ₹ 130, ₹ 140, ₹ 50, ₹ 25, ₹ 45What is the range?
15. People are surveyed about their favorite football team. The population of this study is:
16. The five grades of a student over 20 are:10 ; 12 ; 13 ; 16 and 19. The average grade is:
17. What does "mean" mean?
18. Lower limit of class 40-45 is
19. The mean of x-1, x, x+1
20. Find the median of the given data (which are arranged in ascending order)0, 3, 3, 4, 5, 7, 8, 11, 12
21. Find the maximum value if the range is 38 and the minimum value is 82.
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