Page 187 - Data Science class 10
P. 187

Now, according to the steps mentioned above, first we find the number of variables in the sample (n). Here n = 22
            Then we need to arrange the 22 random numbers in ascending order, as shown in the table below.


                                                  S. No             Random numbers
                                                    1                      25

                                                    2                      26
                                                    3                      28

                                                    4                      30
                                                    5                      33

                                                    6                      35
                                                    7                      36

                                                    8                      37
                                                    9                      39
                                                    10                     42

                                                    11                     43
                                                    12                     44

                                                    13                     45
                                                    14                     47

                                                    15                     52
                                                    16                     54

                                                    17                     55
                                                    18                     58
                                                    19                     64

                                                    20                     65
                                                    21                     66

                                                    22                     68
            Now, we can calculate the positions of decile D1 to decile D9.

                              (n + 1)
                    D  = 1 ×   10th data
                     1
                             (22 + 1)
                       = 1 ×
                               10
                       =   23
                         10
                       = 2.3rd data
            i.e., data between positions 2 and 3:

            26 + 0.3 × (28 – 26)
                       = 26.6






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