Correct exercise 9.4

09_Stetige_Verteilungen.tex

@@ -166,7 +166,7 @@ Hinweise:
 
 			\begin{align}
 					z&=\frac{x-\mu}{\sigma}=\frac{750-753}{2}=-1.5 \nonumber \\
-					P&=(x\leq-1.5)=6.68\%	\nonumber
+					P&=(z\leq-1.5)=6.68\%	\nonumber
 			\end{align}
 		}
 
@@ -174,7 +174,7 @@ Hinweise:
 		\partialsolution{
 			\begin{align}
 				z&=\frac{x-\mu}{\sigma}=\frac{757-753}{2} = 2	\nonumber \\
-				P(x>2)&=1-P(x\leq2)=1-0.9772=2.28\% \nonumber
+				P(z>2)&=1-P(z\leq2)=1-0.9772=2.28\% \nonumber
 			\end{align}
 		}
 
@@ -183,7 +183,7 @@ Hinweise:
 			\begin{align}
 				z_1&=\frac{x-\mu}{\sigma}=\frac{754-753}{2}=0.5	\nonumber \\
 				z_2&=\frac{x-\mu}{\sigma}=\frac{752-753}{2}=-0.5	\nonumber \\
-				P(0.31\leq x \leq0.69)&= P(x \leq0.69) - P(0.31\leq x) = 0.6915-0.3085 = 38.3\% \nonumber
+				P(-0.5\leq z \leq0.5)&= P(z \leq0.5) - P(-0.5\leq x) = 0.6915-0.3085 = 38.3\% \nonumber
 			\end{align}
 		}
 	\end{enumerate}