typo correction

doc/pub/week9/html/._week9-bs017.html

@@ -655,7 +655,7 @@ <h2 id="blocking-transformations" class="anchor">Blocking transformations </h2>
 
 <p>The quantity \( \boldsymbol{X}_k \) is
 subject to \( k \) <b>blocking transformations</b>.  We now have \( d \) vectors
-\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\vec X_{d-1} \) containing the subsequent
+\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\boldsymbol{X}_{d-1} \) containing the subsequent
 averages of observations. It turns out that if the components of
 \( \boldsymbol{X} \) is a stationary time series, then the components of
 \( \boldsymbol{X}_i \) is a stationary time series for all \( 0 \leq i \leq d-1 \)

doc/pub/week9/html/week9-reveal.html

@@ -558,7 +558,7 @@ <h2 id="blocking-transformations">Blocking transformations </h2>
 
 <p>The quantity \( \boldsymbol{X}_k \) is
 subject to \( k \) <b>blocking transformations</b>.  We now have \( d \) vectors
-\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\vec X_{d-1} \) containing the subsequent
+\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\boldsymbol{X}_{d-1} \) containing the subsequent
 averages of observations. It turns out that if the components of
 \( \boldsymbol{X} \) is a stationary time series, then the components of
 \( \boldsymbol{X}_i \) is a stationary time series for all \( 0 \leq i \leq d-1 \)

doc/pub/week9/html/week9-solarized.html

@@ -859,7 +859,7 @@ <h2 id="blocking-transformations">Blocking transformations </h2>
 
 <p>The quantity \( \boldsymbol{X}_k \) is
 subject to \( k \) <b>blocking transformations</b>.  We now have \( d \) vectors
-\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\vec X_{d-1} \) containing the subsequent
+\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\boldsymbol{X}_{d-1} \) containing the subsequent
 averages of observations. It turns out that if the components of
 \( \boldsymbol{X} \) is a stationary time series, then the components of
 \( \boldsymbol{X}_i \) is a stationary time series for all \( 0 \leq i \leq d-1 \)

doc/pub/week9/html/week9.html

@@ -936,7 +936,7 @@ <h2 id="blocking-transformations">Blocking transformations </h2>
 
 <p>The quantity \( \boldsymbol{X}_k \) is
 subject to \( k \) <b>blocking transformations</b>.  We now have \( d \) vectors
-\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\vec X_{d-1} \) containing the subsequent
+\( \boldsymbol{X}_0, \boldsymbol{X}_1,\cdots,\boldsymbol{X}_{d-1} \) containing the subsequent
 averages of observations. It turns out that if the components of
 \( \boldsymbol{X} \) is a stationary time series, then the components of
 \( \boldsymbol{X}_i \) is a stationary time series for all \( 0 \leq i \leq d-1 \)