a = 1 (slider from 1 to 3, step 0.1)
b = 0 (slider from -5 to 30, step 0.5)
x_1: (3 * a + b, 0)
x_2: (7 * a + b, 0)
x_3: (10 * a + b, 0)
x_4: (11 * a + b, 0)
x_5: (11.5 * a + b, 0)
x_6: (13 * a + b, 0)
x_7: (14 * a + b, 0)
x_8: (13.5 * a + b, 0)
m: (x(x_1) + x(x_2) + x(x_3) + x(x_4) + x(x_5) + x(x_6) + x(x_7) + x(x_8)) / 8
σ: sqrt((x(x_1)^(2) + x(x_2)^(2) + x(x_3)^(2) + x(x_4)^(2) + x(x_5)^(2) + x(x_6)^(2) + x(x_7)^(2) + x(x_8)^(2)) / 8 - m^(2))
texte1: "Moyenne : " + m + "
Écart-type : " + σ + ""