Derive Equations 9.13 and 9.14 showing that [E{X}=mu] and [Eleft{X^{2} ight}=mu^{2}+sigma^{2}] E{X} E{x}. = = 2 1 = 2 (+)/2 = (9.13) (1 + 1)

Derive Equations 9.13 and 9.14 showing that

\[E\{X\}=\mu\]

and

\[E\left\{X^{2}\right\}=\mu^{2}+\sigma^{2}\]

E{X} E{x}. = = 2 1 = 2 (+)/2 = (9.13) (1 + 1) - / dy = p +o. (9.14)