Statistics: problem 0002

There is the following data on the range of boarding of 100 passengers of a suburban bus (in km.):
41,0 21,8 21,6 38,0 16,8 20,5 5,9 39,0 25,6 52,0
20,5 28,0 39,0 25,5 25,5 20,5 15,5 32,5 15,5 21,4
25,6 29,0 20,4 21,4 62,0 32,8 49,9 25,6 20,5 47,2
34,0 32,7 42,3 25,6 25,6 16,8 25,6 38,0 32,7 32,5
30,0 20,5 29,5 21,9 63,0 10,0 40,0 52,0 6,9 44,2
41,2 5,0 25,5 32,5 32,5 23,5 21,4 48,5 10,0 46,7
32,7 29,5 28,0 21,5 21,3 32,4 20,5 3,0 34,0 4,0
31,0 29,7 30,5 21,4 30,0 27,1 21,4 32,7 25,4 34,5
29,8 28,0 52,0 32,6 30,5 25,5 45,5 30,0 8,0 28,0
20,5 25,4 34,0 20,5 29,0 30,0 25,6 21,3 29,0 32,7
According to the given data, it is required:
1. Construct an interval distribution series by combining the material into 9 groups at equal intervals.
2. Calculate with an accuracy of 0,1 the arithmetic mean, mode, median, standard deviation, coefficient of variation.
3. Display the resulting series graphically using a polygon and a frequency histogram (build two separate graphs).
4. Range of variation, quartile deviation, coefficient of oscillation, coefficient of linear deviation, coefficient of quartile variation, coefficient of determination.
5. Empirical correlation relation.