From a0993f529dfcd3cca7a4f3ea4b052d13b2370ea0 Mon Sep 17 00:00:00 2001
From: andyeisenberg <andyjeisenberg@gmail.com>
Date: Thu, 17 Sep 2026 11:59:49 -0400
Subject: [PATCH] Added an answer.

---
 source/sec-Variance.ptx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source/sec-Variance.ptx b/source/sec-Variance.ptx
index 929c8f9..5f37827 100644
--- a/source/sec-Variance.ptx
+++ b/source/sec-Variance.ptx
@@ -283,6 +283,12 @@
           If <m>\E(X) = 3</m>, <m>\Var(X) = 2</m>, what is <m>\E(X^2)</m>?
         </p>
       </statement>
+
+      <answer>
+        <p>
+          <m>11</m>.
+        </p>
+      </answer>
     </exercise>
 
     <exercise>