Uniform( a, b)

a < x < b

E = ( a + b)/2,

Var = ( b - a) ²/12,

? = 0

Normal( ?, ? ²)

? > 0

E = ?, Var = ? ²,

? = 0 ( ? _j = 0, j ? 3)

Gamma( ?, ?)

? > 0, ? > 0

x > 0

E = ?/ ?,

Var = ?/ ? ²,

? = 2 ? ^-1/2

Exponential( ?)

? Gamma(1, ?)

X ²( k)

? Gamma( k/2,1/2)

Inverse Gaussian( ?, ?)

? > 0, ? > 0

x > 0

E = ?/ ?,

Var = ?/ ? ²

? =3 ? ^-1/2

Beta( a, b)

a > 0, b > 0

0 < x < 1

,

Lognormal( ?, ? ²)

? > 0

x > 0

,.

? = c ³ + 3 c with c ² = Var/E ²

Pareto( ?, x ₀)

? > 0,

x > x ₀ > 0

,