From 9c0027a8d5b0df89dab3a2cfe54abae97aa873cf Mon Sep 17 00:00:00 2001
From: Alexander Fedorov <Entodi@users.noreply.github.com>
Date: Sat, 12 Jul 2014 23:01:42 +0400
Subject: [PATCH 1/3] Fixed expression to Variance.

Fixed expression to Variance.
---
 06_StatisticalInference/homework/hw1.Rmd | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/06_StatisticalInference/homework/hw1.Rmd b/06_StatisticalInference/homework/hw1.Rmd
index 5deb6ab67..055af37f8 100644
--- a/06_StatisticalInference/homework/hw1.Rmd
+++ b/06_StatisticalInference/homework/hw1.Rmd
@@ -179,7 +179,7 @@ What is the variance expressed to 1 decimal place?
 4. 17.0
 
 *** .hint
-The variance is $E[X^2] - E[X^2]$
+The variance is $E[X^2] - E[X]^2$
 
 *** .explanation 
 ```{r}

From d2e1489a03d8f4a66ff11ab001e5f71d5c9cf960 Mon Sep 17 00:00:00 2001
From: Alexander Fedorov <Entodi@users.noreply.github.com>
Date: Sat, 12 Jul 2014 23:34:21 +0400
Subject: [PATCH 2/3]   Edit Fixed expression to Variance

Fixed expression to Variance
---
 06_StatisticalInference/homework/hw1.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/06_StatisticalInference/homework/hw1.html b/06_StatisticalInference/homework/hw1.html
index 868bc0c79..74f9b87c2 100644
--- a/06_StatisticalInference/homework/hw1.html
+++ b/06_StatisticalInference/homework/hw1.html
@@ -333,7 +333,7 @@ <h2>About these slides</h2>
   <button class="quiz-clear btn btn-danger">Clear</button>
   
   <div class="quiz-hint">
-  <p>The variance is \(E[X^2] - E[X^2]\)</p>
+  <p>The variance is \(E[X^2] - E[X]^2\)</p>
 
 </div>
 <div class="quiz-explanation">
@@ -447,4 +447,4 @@ <h2>About these slides</h2>
   <script>hljs.initHighlightingOnLoad();</script>
   <!-- DONE LOADING HIGHLIGHTER JS FILES -->
    
-  </html>
\ No newline at end of file
+  </html>

From 4b365bc2beb7557e81a76144b54c485afe4a537e Mon Sep 17 00:00:00 2001
From: Alexander Fedorov <Entodi@users.noreply.github.com>
Date: Sat, 12 Jul 2014 23:35:09 +0400
Subject: [PATCH 3/3] Update hw1.md

---
 06_StatisticalInference/homework/hw1.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/06_StatisticalInference/homework/hw1.md b/06_StatisticalInference/homework/hw1.md
index 0955f1f6e..69db94c0d 100644
--- a/06_StatisticalInference/homework/hw1.md
+++ b/06_StatisticalInference/homework/hw1.md
@@ -185,7 +185,7 @@ What is the variance expressed to 1 decimal place?
 4. 17.0
 
 *** .hint
-The variance is $E[X^2] - E[X^2]$
+The variance is $E[X^2] - E[X]^2$
 
 *** .explanation