random: How to form an equation for probability based on the following graph?

jeudi 25 octobre 2018

How to form an equation for probability based on the following graph?

The y-axis is the probability density function of x.

Here's the solution I tried: $P[-4< x\leq 4]=\int_{-4}^{0}k(1+x/4)dx +\int_{0}^{4}k(1-x/4)dx=4k => k =1/4$

Is this correct?

Aucun commentaire:

Enregistrer un commentaire

Inscription à : Publier les commentaires (Atom)