Evaluate: `|[2, 3, 7], [13, 17, 5], [15, 20, 12]|^2` .

Find the mode of the following data in each case: 14, 25, 14, 28, 18, 17, 18, 14, 23, 22, 14, 18 7, 9, 12, 13, 7, 12, 15, 7, 12, 7, 25, 18, 7

Find the Q2 for the following distribution: 6, 7, 8, 3, 11, 19, 10, 15, 17, 13, 20, 5, 18

Find the mean deviation about the mean for the following data :12, 3, 18, 17, 4, 9, 17, 19, 20, 15, 8, 17, 2, 3, 16, 11, 3, 1, 0, 5

For the data 14, 7, 13, 12, 13, 17, 8, 10, 6, 15, 18, 21, 20, compute P_(80)

Evaluate |{:(13,16,19),(14,17,20),(15,18,21):}| .

The marks obtained by 40 students of class IX in an examination are given below: 18, 8, 12, 6, 8, 16, 12, 5, 23, 2, 16, 23, 2, 10, 20, 12, 9, 7, 6, 5, 3, 5, 13, 21, 13, 15, 20, 24, 1, 7, 21, 16, 13, 18, 23, 7, 3, 18, 17, 16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included)

The inter - quartile range of the data 1, 3, 5, 7, 9, 11, 13, 15, 17, 19

Find the mode of the each of the following data collection. 5, 2, 7, 3, 5, 2, 9, 12, 13, 15, 2, 7, 3,5,7,6

Find the median of the following data 12, 17, 3, 14, 5, 8, 7, 15

Find the mode of the following data 10, 5, 20, 25, 10, 13, 17, 13, 22, 13