AS/A2 Stats 1 Stats 3

S2 Topic 2: Continuous random variables
The cumulative distribution function
The cdf F(x) is defined by:
The pdf f(x) and cdf F(x) are linked by:

Find, using calculus, the cumulative distribution function for this pdf:

Summary This method uses integration techniques from Pure 1. You will need to know how to integrate basic polyniomials in x such a linear, quadratic or cubic functions, and then how to substitute the limits. This page uses WebEQ. To speed up downloading you can install this WebEQ Math Viewer . Click on the Math Viewer icon and you will be taken to the download site.