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

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

17, 19, 22, 27, 34, 45, ….

3, 8, 10, 15, 17, 22, 24, ?, ?

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

19.2, 20.6, 17.6, 22.4, 16, 24, 14.4

4, 11, 17, 22, _____, 29, 31, 32

Median of the observatios 5, 7, 14, 12, 15, 17, 17, 5, 14, 7, 5 is a) 14 b)12 c)11.8 d) 7

8 9.5 11.5 14.5 17 20.5 24.5

Construct a frequency distribution for the following series of numbers.2, 3, 4, 6, 7, 8, 9, 9, 11, 12, 12, 13, 13, 13, 14, 14, 14, 15, 16, 17, 18, 18, 19, 20, 20, 21, 22, 24, 24, 25.

Form a grouped frequency distribution from the following data by inclusive method taking 4 as the class size of class intervals. 31, 23, 19, 29, 22, 20, 16, 10, 13, 34, 38, 33, 28, 21, 15, 18, 36, 24, 18, 15, 12, 30, 27, 23, 20, 17, 14, 32, 26, 25, 18, 29, 24, 19, 16, 11, 22, 15, 17,10