[" 23.The range of the following set of observations "2" ,"],[,3,5,9,8,7,6,5,7,4,3" is "]

Range of the observations 2,3,5,9,8,7,6,5,7,4,3, is ………

The mode of a set of observation 7, 12,8,5,6,4,9,10,8,9,7,6,5,9 is

The mode of a set of observation 7, 12,8,5,6,4,9,10,8,9,7,6,5,9 is

Find the variance and S.D. for the following set of numbers. : 7, 11, 2, 4, 9, 6, 3, 7, 11, 2, 5, 8, 3, 6, 8, 8, 2, 6

Find the mode of the following data: (i) 3, 5, 7, 4, 5, 3, 5, 6, 8, 9, 5, 3, 5, 3, 6, 9, 7, 4 (ii) 3, 3, 7, 4, 5, 3, 5, 6, 8, 9, 5, 3, 5, 3, 6, 9, 7, 4 (iii) 15, 8, 26, 25, 24, 15, 18, 20, 24, 15, 19, 15

Make a frequency distribution of the following series 1,1, 2, 3, 3, 3, 3, 3,3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6,6, 6, 6, 6, 7, 7,7,8,8.

Find the union of the following sets. A = {1, 2, 3, 5, 6} and B = {4, 5, 6, 7, 8}