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Find the mean of 4, 7, 8, 9, 10, 12, 13, 17


N = 8
<pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
#1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php(56): mkdir('/home/config_ad...', 493)
#2 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/FolderTreeStorageAndCache.class.php(110): com_wiris_util_sys_Store->mkdirs()
#3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/RenderImpl.class.php(231): com_wiris_plugin_impl_FolderTreeStorageAndCache->codeDigest('mml=<math xmlns...')
#4 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(59): com_wiris_plugin_impl_RenderImpl->computeDigest(NULL, Array)
#5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array)
#6 {main}</pre>
∴ top enclose straight x space equals space fraction numerator sum straight x over denominator straight N end fraction equals 80 over 8 equals 10

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Find the mean of data:


space space straight N space equals space sum f space equals space 7 plus 4 plus 6 plus 3 plus 5 equals 25
sum f x space equals space 35 plus 40 plus 90 plus 60 plus 135 equals 360
rightwards double arrow             top enclose straight x space equals space fraction numerator sum f x over denominator straight N end fraction equals space 360 over 25 equals 14.4
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Find the mean of the data:


space space straight N space equals sum f equals space 2 plus 8 plus 10 plus 7 plus 8 plus 5 equals 40
Let assumed mean, A be 70
∴                        straight d space equals space straight x minus straight A space equals negative 50 comma space minus 20 comma negative 10 comma space 10 comma space 30 comma space 50
                       italic sum f d italic space italic equals space left parenthesis negative 100 right parenthesis plus left parenthesis negative 160 right parenthesis plus left parenthesis negative 100 right parenthesis plus 70 plus 240 plus 250 equals 560 minus 360 equals 200
∴                      <pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
#1 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php(56): mkdir('/home/config_ad...', 493)
#2 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/FolderTreeStorageAndCache.class.php(110): com_wiris_util_sys_Store->mkdirs()
#3 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/RenderImpl.class.php(231): com_wiris_plugin_impl_FolderTreeStorageAndCache->codeDigest('mml=<math xmlns...')
#4 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/plugin/impl/TextServiceImpl.class.php(59): com_wiris_plugin_impl_RenderImpl->computeDigest(NULL, Array)
#5 /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/service.php(19): com_wiris_plugin_impl_TextServiceImpl->service('mathml2accessib...', Array)
#6 {main}</pre>
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Find the mean of the data:


380 Views

Find the mean of: 168, 162, 171, 153, 159, 165, 158, 164

N = 8
Let assumed mean, A be 160
∴                           d = x - A = 8, 2, 11, -7, -1, 5, -2, 4
                             sum straight d equals 20
∴                            top enclose straight x space space equals straight A plus fraction numerator sum straight d over denominator straight N end fraction equals 160 plus 20 over 8 equals 160 plus 2.5 space equals space 162.5

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