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Merge and squash pull request #31164 from saasmath/master

Closes #31164

commit 1261cae
Author: Gary Anderson <git@garyvictoranderson.com>
Date:   Wed Oct 3 04:14:58 2012 -0700

    Accept approximate decimal answers in computing means

commit 08abd64
Merge: 87bc7c5 d1f63a4
Author: Gary Anderson <git@garyvictoranderson.com>
Date:   Wed Oct 3 03:55:57 2012 -0700

    Merge branch 'master' of https://github.com/Khan/khan-exercises

commit 87bc7c5
Author: Gary Anderson <git@garyvictoranderson.com>
Date:   Tue Oct 2 03:27:10 2012 -0700

    Accept inexact answers for area computations using z-scores.

    In math and statistics courses, many students are taught to use graphing calculators or other
    technology, rather than tables, to compute areas under the normal curve.  These will differ
    in the last digit frequently from the approximate z-tables, leading to incorrectly reported errors in
    the exercises.
    This fixes the issue by accepting the correctly rounded technology produced answer.
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1 parent d1f63a4 commit 5c60a281390a3a8b42d36874b0faa85382e497ff Gary Anderson committed with beneater Oct 3, 2012
Showing with 3 additions and 3 deletions.
  1. +1 −1 exercises/mean_median_and_mode.html
  2. +1 −1 exercises/z_scores_2.html
  3. +1 −1 exercises/z_scores_3.html
View
2 exercises/mean_median_and_mode.html
@@ -69,7 +69,7 @@
<div class="number-list"><code><var>INTEGER_LIST</var></code></div>
</div>
- <p class="solution"><var>MEAN</var></p>
+ <p class="solution" data-inexact data-max-error="0.01"><var>MEAN</var></p>
<div class="hints">
<p>To find the mean, add all the numbers and then divide by the number of numbers.</p>
View
2 exercises/z_scores_2.html
@@ -69,7 +69,7 @@
<div class="fake_row reading" data-each="ROWS as i, row">
<span><var>row</var></span><span data-each="ZGRID[i] as j, zgrid"><var>zgrid</var></span>
</div>
- <div class="solution" data-forms="percent">
+ <div class="solution" data-inexact data-max-error="0.01" data-forms="percent">
<span><var>roundTo(2, ANSWER * 100)</var></span>
</div>
View
2 exercises/z_scores_3.html
@@ -106,7 +106,7 @@
<div class="fake_row reading" data-each="ROWS as i, row">
<span><var>row</var></span><span data-each="ZGRID[i] as j, zgrid"><var>zgrid</var></span>
</div>
- <div class="solution" data-forms="percent">
+ <div class="solution" data-inexact data-max-error="0.01" data-forms="percent">
<span><var>roundTo( 2, ANSWER * 100 )</var></span>
</div>

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