>> Lab1
min: -2.790000   |   max: 1.800000
span (R): 4.590000
mat. expectation: -0.285917
dispersion: 0.917021
[-2.790000 .. -2.216250):  5 elements
[-2.216250 .. -1.642500):  5 elements
[-1.642500 .. -1.068750):  15 elements
[-1.068750 .. -0.495000):  18 elements
[-0.495000 .. 0.078750):  35 elements
[0.078750 .. 0.652500):  24 elements
[0.652500 .. 1.226250):  12 elements
[1.226250 .. 1.800000]:  6 elements