9, 12, 11, 14, 13, (.....), 15
(a) 12     
(b) 16   
(c) 10   
(d) 17

8, 7, 11, 12, 14, 17, 17, 22, (.....) (a) 27 (b) 20 (c) 22 (d) 24

3, 5, 9, 11, 14, 17, 21 (a) 21 (b) 17 (c) 14 (d) 9

If the mode of the data: 16 ,\ 15 ,\ 17 ,\ 16 ,\ 15 ,\ x ,\ 19 ,\ 17 ,\ 14 is 15 , then x= (a) 15 (b) 16 (c) 17 (d) 19

1, 5, 5, 9, 7, 11, 11, 15, 12, 17

Find the median of 10, 12, 11, 13, 20, 22, 10, 8, 19. A) 11 B) 13 C) 11.5 D) 12

The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

Construct a frequency table for the following ages (in years) of 30 students using equal class intervals, one of them being 9-12 , where 12 is not included. 18, 12, 7, 6, 11, 15, 21, 9, 8, 13, 15, 17, 22, 19, 14, 21, 23, 8, 12, 17, 15, 6, 18, 23, 22, 16, 9, 21, 11, 16 .

The marks of 20 students in a test were as follows: 5, 6, 8, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 16, 16, 18, 19, 20. Calculate the mean, median and mode.

14 observations are 10, 11, 11, 12, 13, 14, 12, 13, 10, 12, 12, 14, 14 and 15. What is the median of the given observations?