5.18.
$X$, $Y$ санамсаргүй хэмжигдэхүүнүүд хамааралгүй бөгөөд тархалтын функцүүд нь харгалзан
$F_1(x)=\left\{\begin{array}{lc}
0 & x\leq 0 \\
x/4 & 0<x\leq 4\\
1 & x>4
\end{array}\right.
$ $F_2(y)=\left\{\begin{array}{lc}
0 & y\leq 0 \\
\sin{y} & 0<y\leq \pi/2\\
1 & y>\pi/2
\end{array}\right.
$ бол $M(2X-3Y+1)=?$, $D(3X-2Y-2)=?$
$F_1(x)=\left\{\begin{array}{lc}
0 & x\leq 0 \\
x/4 & 0<x\leq 4\\
1 & x>4
\end{array}\right.
$ $F_2(y)=\left\{\begin{array}{lc}
0 & y\leq 0 \\
\sin{y} & 0<y\leq \pi/2\\
1 & y>\pi/2
\end{array}\right.
$ бол $M(2X-3Y+1)=?$, $D(3X-2Y-2)=?$
