Is F(x) = $\frac { 1 } { ( x + 1 ) ^ { 2 } }$

Short Answer

Is f(x) = $\frac { 1 } { ( x + 1 ) ^ { 2 } }$ is a probability density function for x ≥ 0? If so, find P(X ≥ 2).
Enter either "no" or just a reduced fraction of form $\frac { a } { b }$ .