Logistic Function Formula

Equation for calculate logistic function is,

p(x) = L ÷ [1 + e^-k(x-x₀)]

where,
L = curve's maximum value,
e = the natural logarithm base (i.e., 10),
x₀ = determines at which duration the midpoint occurs,
x = duration,
k = the steepness of the curve,
p(x) = Logistic function probability that duration x will be judged as longer than the standard duration.