1. The median of the data set 6,7,8,8,9,15,10,15,20,19,25,24,216,7,8,8,9,15,10,15,20,19,25,24,21 is:

(a) 10 (b) 15 (c) 9 (d) 19

2. If 12 is removed from the dataset 10, 14, 12, 16, 8, 9, 24, 20, then the median will increase by _____.

3. The median of 8, 15, 10, 11, 7, 9, 11, 13, 16 is:

(a) 15 (b) 10 (c) 11.5 (d) 11

4. The median of the series 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18 will be –

(a) 10 (b) 11 (c) 10.5 (d) 11.5

5. The median of the data set 10, 12, 14, 18, 15, 200, 100, 20, 22, 24 will be —

(a) 19 (b) 21 (c) 23 (d) 50

6. Range of the data: 12, 25, 15, 18, 17, 20, 22, 26, 6, 16, 11, 8, 19, 10, 30, 20, 32

(a) 10 (b) 15 (c) 18 (d) 26

7. Translate the following and find the mode of the data:
15, 11, 10, 8, 15, 18, 17, 15, 10, 19, 10, 11, 10, 8, 19, 15, 10, 18, 15, 3, 16, 14, 17, 2
Mode = 15 (since it appears most frequently)

8. The combined mean of the numbers 9, 12, 15, 18, 20, 22 increases by 2 if the number ___ is taken instead of 15.

(a) 27 (b) 19 (c) 21 (d) 25

9. The median of the data set 3, 14, 18, 20, 5 is 18.

10. The numbers 11, 12, 14, \(x - 2\), \(x + 4\), \(x + 9\), 32, 38, 47 are arranged in ascending order, and their median is 24. Find the value of \(x\).

11. The ages (in years) of some students are: 10, 11, 9, 7, 13, 8, 14; the median of their ages is _____ years.

12. The median of 8, 15, 10, 11, 7, 9, 11, 13, 16.

13. The median of the data set {3, 14, 18, 20, 5} is 18.

14. The numbers 11, 12, 14, \(x-2\), \(x+4\), \(x+9\), 32, 38, 47 are arranged in ascending order, and their median is 24. Find the value of \(x\).

15. The median of the data set 3, 14, 18, 20, 5 is 14.

16. The median of the data set 3, 14, 18, 20, 5 is 18.

17. Find the median of 8, 15, 10, 11, 7, 9, 11, 13, and 16.

(a) 15 (b) 10 (c) 11.5 (d) 11

18. The median of the numbers 8, 15, 10, 11, 7, 9, 11, 13, 16 will be —

(a) 15 (b) 10 (c) 7 (d) 11

19. What will be the median of the numbers 8, 15, 10, 11, 7, 9, 11, 13, and 16?

20. The daily amounts of money received by our 16 friends for school commuting and other expenses are: 15, 16, 17, 18, 17, 19, 17, 15, 15, 10, 17, 16, 15, 16, 18, 11 Let us determine the **mode** of the amounts received daily by our friends.

21. The median of the data set 3, 14, 18, 20, 5 is 18.

22. Translate: If the data 9, 10, 12, 15, (x + 1), (x + 3), 32, 35, 36, 40 are arranged in ascending order, the median is 20. Find the value of x.

(a) 16 (b) 17 (c) 18 (d) 20

23. Some students are aged (in years): 10, 11, 9, 13, 8, 14; The median of their ages is —— years.

24. The median of the data 3, 14, 18, 20, 5 is 18.

25. The median of 3, 14, 18, 20, 5 is 14.

(a) 3 (b) 18 (c) 20 (d) 14

26. If the number 15 is replaced by ----------, the combined average of the numbers 9, 12, 15, 18, 20, 22 will increase by 1.

27. In a partnership, A invests ₹30,000, B invests ₹20,000, and C invests ₹15,000. After 4 months, A withdraws half of his capital. 9 months later, the business makes a profit of ₹28,400. How should the profit be distributed among A, B, and C?

28. What's the median of 8, 15, 10, 11, 7, 9, 11, 13, 16?

(a) 15 (b) 11 (c) 10 (d) 11.5