Math Help - CDF to PDF

1. CDF to PDF

Hello, can someone please help me, Im stuck with this:

2. Originally Posted by NaeL
Hello, can someone please help me, Im stuck with this:
For CDF $F(x)$ and PDF $f(x),$ we have the relation...

$\frac{d}{dx}F(x) = f(x)$

Also, you know $\int_a^b f(x) = 1$ where $x$ is defined on $a You can use this fact to find $K.$

For the last part note that $F(x) = P(X\leq x)$ and $F(x)$ is given. Also, $P(a\leq x \leq b) = \int_a^b f(x)dx.$

Show me where you are stuck, and I will help you proceed.