At the points x = 0, 1,..., 6, the cdf for the discrete random variable X has the value Fx(x) = x(x +1)/42. Find the pdf for X.
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Originally Posted by donald17 At the points x = 0, 1,..., 6, the cdf for the discrete random variable X has the value Fx(x) = x(x +1)/42. Find the pdf for X. The pdf is $\displaystyle f(x)=F_X(x)-F_X(x-1);~x=1,2,\cdots,6$.
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