# Is there a symbol to say a random variable is not distributed according to a distribution?

$$\sim$$ (tilde) means that a random variable is distributed according to a distribution.

but $$\not\sim$$ (not tilde) is valid to say that a random variable is not distributed according to a distribution?

e.g.: $$X ≁ N(μ,σ^2)$$

to say that X is not distributed according to a normal distribution?

• Seems good enough to me. I am not aware of a standard alternative – Brevan Ellefsen Feb 21 at 9:22
• So $X\sim N(\mu_1,\sigma^2)$ is not excluded ($\mu_1\ne \mu$)? – d.k.o. Feb 21 at 9:53
• @d.k.o. it should means it isn't distributed like that. – Cirelli94 Feb 22 at 15:14