Calculating a Cumulative Distribution Function (CDF)
MIT 6.041SC Probabilistic Systems Analysis and Applied Probability, Fall 2013 View the complete course: http://ocw.mit.edu/6-041SCF13 Instructor: Jimmy Li ...
========== Hi. In this problem, we'll get some
practice working with PDFs and also using PDFs
to calculate CDFs. So the PDF that we're given
in this problem is here. So we have a random variable,
z, which is a continuous random variable. And we're told that the PDF of
this random variable, z, is given by gamma times 1 plus z
squared in the range of z between negative 2 and 1. And outside of this
range, it's 0. All right, so first thing we
need to do and the first part of this problem is we need to
figure out what gamma is because it's not really a
fully specified PDF yet. We need to figure out exactly
what the value gamma is. And how do we do that? Well, we've done analogous
things before for the discrete case. So the tool that we use
is that the PDF must integrate t...