If X∼Normal(μ,σ2)X \sim \text{Normal}(\mu, \sigma^2)X∼Normal(μ,σ2), what is E[X3]E[X^3]E[X3]?
μ3+3μσ2\mu^3 + 3\mu\sigma^2μ3+3μσ2
μ3+σ3\mu^3 + \sigma^3μ3+σ3
μ3\mu^3μ3
μ3+3μσ\mu^3 + 3\mu\sigmaμ3+3μσ