Which of the Following Is Not True for a Random $a \leq x \leq b$

Short Answer

Which of the following is not true for a random variable X that is uniformly distributed over the interval $a \leq x \leq b$ ? $\begin{array}{|l|l|}\hline A&E(X)=(a+b) / 2 \\\hline B&V(X)=(b-a)^{2} / 12\\\hline C&\sigma=(b-a) / 6\\\hline D&f(x)=\frac{1}{b-a} \text { if } a \leq x \leq b\\\hline \end{array}$