find the cumulative distribution function for
so far I get
but the given solution is:
where those the come from?
and as this is at , we have that for and zero otherwise is a density, but the of the original post is not (it integrates up to )Code:(%i5) integrate((3/4)*(1-z^2), z, -1, x); (%o5) (3*(2/3-(x^3-3*x)/3))/4 (%i6) radcan(%); (%o6) -(x^3-3*x-2)/4 (%i7)
(note Maxima unlike Mathematica is freeware - and does not just produce plain ASCII output as above either)