diff --git a/course/index.html b/course/index.html
index fc43d0a..53e45f2 100755
--- a/course/index.html
+++ b/course/index.html
@@ -2,7 +2,7 @@
 <html>
 <!--********************************************-->
 <!--*       Generated from PreTeXt source      *-->
-<!--*       on 2026-02-12T07:12:12-05:00       *-->
+<!--*       on 2026-02-12T09:52:37-05:00       *-->
 <!--*   A recent stable commit (2022-07-01):   *-->
 <!--* 6c761d3dba23af92cba35001c852aac04ae99a5f *-->
 <!--*                                          *-->
diff --git a/course/quiz-02-printable.html b/course/quiz-02-printable.html
index 836860f..f45e07b 100755
--- a/course/quiz-02-printable.html
+++ b/course/quiz-02-printable.html
@@ -392,7 +392,7 @@ f(x) = F'(x) = 4x - 4x^3.
 \E(X) \amp = \int_0^1 x f(x)\ dx \\
 \amp = \int_0^1 x (4x - 4x^3)\ dx \\
 \amp = \int_0^1 4x^2 - 4x^4\ dx \\
-\amp =  \frac{4x^2}{3} - \frac{4x^5}{5}\bigg|_0^1 \\
+\amp =  \frac{4x^3}{3} - \frac{4x^5}{5}\bigg|_0^1 \\
 \amp =  \left(\frac{4}{3} - \frac{4}{5}\right) - (0) \\
 \amp =  \frac{8}{15} \approx 0.533. 
 \end{align*}
diff --git a/course/quiz-02.html b/course/quiz-02.html
index 736d99d..0ad1432 100755
--- a/course/quiz-02.html
+++ b/course/quiz-02.html
@@ -377,7 +377,7 @@ f(x) = F'(x) = 4x - 4x^3.
 \E(X) \amp = \int_0^1 x f(x)\ dx \\
 \amp = \int_0^1 x (4x - 4x^3)\ dx \\
 \amp = \int_0^1 4x^2 - 4x^4\ dx \\
-\amp =  \frac{4x^2}{3} - \frac{4x^5}{5}\bigg|_0^1 \\
+\amp =  \frac{4x^3}{3} - \frac{4x^5}{5}\bigg|_0^1 \\
 \amp =  \left(\frac{4}{3} - \frac{4}{5}\right) - (0) \\
 \amp =  \frac{8}{15} \approx 0.533. 
 \end{align*}