Chebyshev upper bound for a triangular density

Let $X$ be a continuous random variable with the probability density function

$$f(x)=\begin{cases}\frac{2x}9, & 0<x<3,\ 0, & \text{otherwise.}\end{cases}$$

Then the upper bound of $P(|X-2|>1)$ using Chebyshev's inequality is ________________