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\" y=\"2.49999\"><\/image> <\/g> <\/svg><\/span><\/p><p>Ph\u01b0\u01a1ng sai&nbsp;l&agrave;<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$S_x^2$<\/span> = 9775","<strong>B.<\/strong> <span class=\"math-tex\">$S_x^2$<\/span> = 9757","<strong>C.<\/strong> <span class=\"math-tex\">$S_x^2$<\/span> = 9577","<strong>D.<\/strong> <span class=\"math-tex\">$S_x^2$<\/span> = 7957"],"correct":"1","level":"3","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"200\" width=\"390\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g> &lt;title&gt;&lt;\/title&gt; <rect fill=\"#fff\" height=\"202\" id=\"canvas_background\" width=\"392\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> &lt;title&gt;&lt;\/title&gt; <image height=\"190\" id=\"svg_1\" width=\"384\" x=\"3.00002\" 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\" y=\"4\"><\/image> <\/g> <\/svg><\/span><\/p><p>Ph\u01b0\u01a1ng sai l&agrave;&nbsp;&nbsp;<span class=\"math-tex\">$S^2_x = \\overline{x^2}- \\left(\\overline{x}\\right)^2=\\dfrac{1}{N} \\sum n_i.x_i^2 - \\left( \\dfrac{1}{N} \\sum n_i . x_i \\right) ^2 $<\/span>&nbsp;<\/p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =&nbsp;<span class=\"math-tex\">$\\dfrac{21800000}{200}- \\left( \\dfrac{63000}{200} \\right)^2$<\/span>&nbsp;= 9775<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$S_x^2$<\/span>&nbsp;= 9775<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2023-05-28 05:18:00","option_type":"math","len":0},{"id":"6692","mon_id":"1158767","chapter_id":"1158885","post_id":"6449","question":"<p>Sau m\u1ed9t th&aacute;ng gieo tr\u1ed3ng m\u1ed9t gi\u1ed1ng hoa, ng\u01b0\u1eddi ta thu \u0111\u01b0\u1ee3c s\u1ed1 li\u1ec7u sau v\u1ec1 chi\u1ec1u cao (\u0111\u01a1n v\u1ecb: mm) c\u1ee7a c&aacute;c&nbsp;c&acirc;y hoa \u0111\u01b0\u1ee3c tr\u1ed3ng<\/p><p><span class=\"svgedit\"><svg height=\"170\" width=\"310\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"172\" id=\"canvas_background\" width=\"312\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>&lt;title&gt;&lt;\/title><image height=\"167\" id=\"svg_1\" width=\"305\" x=\"1.5\" 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\" y=\"2.49999\"><\/image> <\/g> <\/svg><\/span><\/p><p>\u0110\u1ed9 l\u1ec7ch chu\u1ea9n&nbsp;l&agrave;<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$S_x$<\/span> = 98,87","<strong>B.<\/strong> <span class=\"math-tex\">$S_x$<\/span> = 97,88","<strong>C.<\/strong> <span class=\"math-tex\">$S_x$<\/span> = 89,78","<strong>D.<\/strong> <span class=\"math-tex\">$S_x$<\/span> = 78,98"],"correct":"1","level":"3","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"200\" width=\"390\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g> &lt;title&gt;&lt;\/title&gt; <rect fill=\"#fff\" height=\"202\" id=\"canvas_background\" width=\"392\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> &lt;title&gt;&lt;\/title&gt; <image height=\"190\" id=\"svg_1\" width=\"384\" x=\"3.00002\" 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\" y=\"4\"><\/image> <\/g> <\/svg><\/span><\/p><p>Ph\u01b0\u01a1ng sai l&agrave;&nbsp;&nbsp;<span class=\"math-tex\">$S^2_x = \\overline{x^2}- \\left(\\overline{x}\\right)^2=\\dfrac{1}{N} \\sum n_i.x_i^2 - \\left( \\dfrac{1}{N} \\sum n_i . x_i \\right) ^2 $<\/span>&nbsp;<\/p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =&nbsp;<span class=\"math-tex\">$\\dfrac{21800000}{200}- \\left( \\dfrac{63000}{200} \\right)^2$<\/span>&nbsp;= 9775<\/p><p>\u0110\u1ed9 l\u1ec7ch chu\u1ea9n l&agrave;&nbsp;&nbsp;<span class=\"math-tex\">$S_x = \\sqrt{S_x^2} = \\sqrt{9775} \\approx$<\/span>&nbsp;98,87<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$S_x$<\/span>&nbsp;= 98,87<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2023-05-28 05:22:13","option_type":"math","len":0},{"id":"6697","mon_id":"1158767","chapter_id":"1158885","post_id":"6449","question":"<p>Ti\u1ec1n c&ocirc;ng nh\u1eadt c\u1ee7a 65 nh&acirc;n vi&ecirc;n trong x&iacute; nghi\u1ec7p t\u01b0 nh&acirc;n \u0111\u01b0\u1ee3c th\u1ed1ng k&ecirc; nh\u01b0 sau (\u0111\u01a1n v\u1ecb: ngh&igrave;n \u0111\u1ed3ng)<\/p><p><span class=\"svgedit\"><svg height=\"220\" width=\"250\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"222\" id=\"canvas_background\" width=\"252\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>&lt;title&gt;&lt;\/title><image height=\"216\" id=\"svg_1\" width=\"246\" x=\"1\" 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\" y=\"2\"><\/image> <\/g> <\/svg><\/span><\/p><p>Ti\u1ec1n c&ocirc;ng trung b&igrave;nh l&agrave;<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$\\overline{x}$<\/span> = 79,77","<strong>B.<\/strong> <span class=\"math-tex\">$\\overline{x}$<\/span> = 77,97","<strong>C.<\/strong> <span class=\"math-tex\">$\\overline{x}$<\/span> = 97,97","<strong>D.<\/strong> <span class=\"math-tex\">$\\overline{x}$<\/span> = 99,77"],"correct":"1","level":"3","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"240\" width=\"360\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g> &lt;title&gt;&lt;\/title&gt; <rect fill=\"#fff\" height=\"242\" id=\"canvas_background\" width=\"362\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g> &lt;title&gt;&lt;\/title&gt; <image height=\"241\" id=\"svg_1\" width=\"358\" x=\"1\" 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0jWu+wVXapRBs9WPMf7uzb1fclRHlxeZrTqEo7U745Mc4Fmdubq72JgduTFv3fUszq1nZrj4h+UTcSISCuLl86+G5oHg4nfQc5\/CvjpfzAR1ScazR0WOVMTwKfEOBAnoEvTTeM9wB42E4ic\/+MxwP+px3uXSFeDLEVQHikkj3j+xx1gZsUaYq6jdo+tFzGN82WrM6kHZ30iMb3XXrMt\/3IDTZAV7Z4bFTZ6BfeRYDE7IpjXxs9CarV\/zPbhfSASN\/gi3lnVbl72CGK7GaeliBXcX3+YOGgl8yVrxXVqhDd\/RVKCly6dfc1RHxRKbS44vx6bmpprgc0Xtsv4o8lWsapX5GGsmx7q6a3LC7bfyw+HiH5Yz4jjYR5c1u6TYHPl3drmfoCSKwgJnxQsQiJwFdbYjVGn6Ce4OSKpZY856fZs7aCTwZZaLs0Yzy7Nfc1RHNZ7MrOGIb9Tu0fWQNceXWa0yt3UG8TI\/u2MR75qzZo05a7LC+TYsW44fgX3k2OySmNfluuYX58\/CHu7smU9O0D+1MbukUtKtkrOaO2gk8CUWO+zRxT33a47qOKuxWcMR36jdM77zjBv5bL5v+UMMPLcX1nLXszg1fwR3\/rAccW4L9sFp4RyNl+9+oVe\/2nuY7aFCiz45GyD8n9iYldgRZ\/sFd9BIkC\/5vqUfuJza07h\/wVEdZ34TIwOYj7UM36jdo747XK2y71ZTZm529uquXV052x6cD8Myc\/Ao7BMvE7Hi3nJeaxSsvmuefz8BUWdNFdHjhbHWJdOnfsS4r2KWLMSvAgTWzPT6JnfQSLjc47t00nzM76zjVZzRMdcBccX4mY\/7Zn2qajeecRbiiPnL960fCOZi7BnFsnXXuW\/k+b24+IelQhzIwYAuXCPPS4TZfETJsLp8RNraB0F1nrsgnt26uD2w99VIW\/crrvgZVzWXO2gUUX7NdMm5epVuGXw5g\/5w0sh1RXxb81mPrZqbwXOfQq2qMWef4qDu8x3HEWt+z12zXvOxSR+BZzPD4ibPwD5nLucI7J8TpBou4dO\/IKs0\/ZNpjWp4so5vzwEX\/7BUicM+327MNE33F2AV+kX9lLcn3B5aoxqerOPbc8DFPyxV4rAP49P\/GWCLs\/\/JsBd8r\/hxeXvC7aE1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w9IFUk9ruqY1quHJOr49B1z8w8Jkjx49evT4\/cj8pTE3tbSma1qjGp6s49tzwMU\/LF0g9bSma1qjGp6s49tzwMU\/LF0g9bSma1qjGp6s49tzwMU\/LFXisA+DFwFtvfeUISre6ZpZvSd1633MfK94rSh73wH8cG\/jW2n0C+6iEUQ98lA+5PcXM67SLoIfRyCO1fuFGTlvVrWaa37Pq3NZd4b8rugMvsX5XNN7+k6c\/6Pfx6yL0xp9l2gSK4t4BASKIiFeFJXPcT6vl0+fUrHHp+ADIxcYtqhJ1uhX3EGjLVzuXKHTiiM66sclx5Fj1Trlzp5a5Xuu7a1+AKw5Cn7G5+SL0Hf5jg\/x+55Y0CP+sDAfv9Mzol5na4h9M8PiJs\/APlsXkYPhc2yKgO1MgCDBdQEQLy1fCLhnOH\/Pr\/0WOvMKlIgaMTbiIokiUaNfcqVGK5xOfF81mivYqyP+KydijbkaANarDla16vTClp\/JHM0B+ZrvIdZs7jOAbW8sqp8INsWneol6na0h98ywnNnQwT6zxFWwMZgologCZHQpsbFGND8TbCYe50W\/WTfzYS\/unF+B78SgeLPmOWmv4kqNtlAe5VzGhqZ3Y4+OxKJmtDcHyKPY7LZqNTY2Mau3yNEccDUO+Kb4cj1DnF\/FEteKeG5cG2H+aH64+IflqDgz2CcLIggkX5wTcM9lboGgUVTO0PeZoO6izogcqdL0E6RlTGJpTszMMaJev+QOGjnI05wn0hK7dHO5dAVHdeS+V41Z8aoGlDcRrQFXQ7MmGjnqu\/aUX4J4lMduPtb+Khb2cvpoX9e4we27wsU\/LG7yDOzjHFPQ+YLc+tnaIyAaezCiwAjqisklKutyoh2Bs6\/GaUlc2JgT2FyifZs7aOTAr5yXfM+6oZnLp19zVEeX7xn2jGucJjG\/XL3MmmjkqO+QdZcf2Gdn6v6Af7dimemj55hjTcZpsEI+RYbFTZ7BBQxbgcwEOoMuJe7J2doPuyskfMuCOtsRqjT9hJhs4mwBfYM7aJQhR\/b6dZVumaM6zhqPYL9cJ6tadfUifWL+ZY76LjiPZxk6m38BW76TWPurWNDG6aN941kRt+8KnRkZFjd5BvZxjuGwa3LuMqOAR1kJFsWPOEGdb0eo0vQTFG9uzO6OWJeT+dvcQaPM7I+IGVfoljmqI\/HNGjN7ufhdPcRadc1sVm+RqhyI57scj71hFYvrI\/FHJq6NMH80F1z8w1IlDvtkQRSQcxghswDOthcEdYLpopwvM\/94Jl\/eEao0\/QQVBjGKmMBCGsR1v+AOGmVm9+7y8irdMkd1JI5ZDsxqz8Ufba72ZvUYOZMDqucI+8jm4ou2VSzsk\/2KNldXzraHfA4Mi5s8A\/tkweSwQ8mgZ7SWf8+g\/WJhIXg8n+8xWbiMfEnwiR8Qz7wKlyxZc0APp8G3uYNGmdm9S8usm4r9So7qyF1nv9ljK5Y9tcp31Z7LMwdrjpJrOH\/PvuED31UHe2LJd8t87Cu5b5zNBfbNDIubPEMMVvA9ipaRKBpbFylBo4AZrYkjg6Cac76tfN6DO\/fXSFslZETxM65oynAHjSLKHacX5Fw9U4jf4KiOuTGT7zGuOOK6Va3m2ouNbAbrzrCnhjXPyD1jFQvEeXfXnKv5szXEs5lhcZNnYB8XYCXsn0WuhkvYk1RbVGn6J9Ma1fBkHd+eAy7+YakSh32+3ZhpmrO\/aCrQr\/6nvD3h9tAa1fBkHd+eAy7+YakSh30Yn\/7PAFt8+z+78b3ix+XtCbeH1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q9LF0g9rema1qiGJ+v49hxw8Q8Lkz169OjR4\/cj85fG3NTSmq5pjWp4so5vzwEX\/7B0gdTTmq5pjWp4so5vzwEX\/7B0gdTTmq5pjWp4so5vzwEX\/7BUicM+jPgSI14IJDvjzHtRjxL3c+9R3XqXK98rXivK3ncAP7bexqf7uYK7aCRW7xPme5xnfPulWnvAjyMQh6sLQU64uFa1\/Iv3Mc98z3czy\/k9b490z++5+62+MoO1mWFxk2dgn9hY1XR1gbpYBS2RNJ\/Xn4Hn48XxOX+PgvI5ft9zcXuo2ONT8IGRk0wo1qt8vYNGEfxRM5E2MZ9zLt2FIzqqwcziUI3mpiN7rE33XXo5\/Rys2cvMd\/kmtC6zJ981n2tmdffMbfWVGc6XYdly9AjsEy\/CBYOzSv4cDLhn9jK7EAmti4nJJFu8CM6Xj2dxfvwKJapGTjKB9vyyX+XrlRpl0Cz\/lUMOxPxkftVormCvjrprhqsxYtV8rkuezc+ghdah1Uo\/R4XvzOV6xRbvink9785c1UzeL7K3rzhYkxkWN3kG9onOI2AWkYuSiPGz4Pl8wcIJEJklgkTlORdrFp11Mx\/2UqXpGfCdGBSvSw60UtxX+XqlRhmXdzmf8HeWe1eyR0fiUyz8m+sy5jxzuY6UKxHlF7haj\/MzKnx395L9YQ11MMv3Vc24M8QsTqdZxj03LG7yDOwTHZHDCkii6Pvqso+iZpORXww3z2XnH4jo5xnOxlCJtMxJph+4rUT9BXfQKII\/ygNppO\/SkvzhX32+A\/hyBNfcIsy5xpxrJOaOq6GYZzM+9X12Br7kGGCV765mVnd\/pK9knC\/D4ibPwD44GVFQGjHgrfVblzlDlxTF4BJ1DvaZgDlRXSIegTOvZqZljG2VqN\/kDhpl8Ekj5qZ0QlNB3rh8+jVHdXT5HnGNmXzhnFy\/OtvVi+oxapb51PdZjs9qfZXvbr\/V3c\/OWukMzpdh2XL0COwTkxmnosO6KF0gc3E9SJiz6AwN9tc5+pxBwJxUznaET2KowiUZMRGbQJOrfL2DRkI6RK3IlahVRrkWC\/YKjuq4ahiuMQO5w1kasVZdvUifqGlGz+8l+z47I+e5WOW7qxmHzmX9kb6Scb4My5ajR2AfnBRyPBKDcI7PgvwE+RETKcJ50W\/YI+oWVZp+gksyYsXmRtbg23DmXXD3PSv6CPM5x3\/NUR2J9UxjzsRa5Zm856zeIhW+uztw\/gA+b53pamaGzp3F6fpKxj03LFuOHoF9oiP5O+TLzAngbHtxAsWLiL9ywtkAH\/\/ExpyJ+vyaO2gkXMErN\/jX5WWcv5KjOrpYI7O6zM\/EfagV1bVwtkyF765WZ\/W7yndXM06PePf6vKevZJwvw+Imz8A+sRETUNxbzkowfdczEmUVzBZxf8jf8SkmC4Jn0aHCj6uRnug8oxvz\/0M6xDsnT5Qb0jLmN\/O5SVzBUR1dc4u4RiR9lEv5O\/B9VtszKnzPvuDDbF+tneFqZs\/d83lPX8k4X4Zly9EjZOcBh7FrxCYJClpj6yJ12bF4Mlqjkc8DBNN8FFPgg7Mfgb2vxiVZZpWo3+QOGkWkhUYurJyruUFcBb4cwTW3CHOuqajhaeS82lN7GdYdYeb7yjexyvdZzey5+1VfcbA2Myxu8gzss9VYK2D\/rcZcAaLvSaotqjT9k2mNaniyjm\/PARf\/sFSJwz7fbsw0za2\/AD9Fv\/qf8vaE20NrVMOTdXx7Drj4h6VKHPZhfPo\/A2zh\/hOrEnyv+HF5e8LtoTWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzD0gVST2u6pjWq4ck6vj0HXPzDwmSPHj169Pj9yPylMTe1tKZrWqManqzj23PAxT8sXSD1tKZrWqManqzj23PAxT8sXSD1tKZrWqManqzj23PAxT8sZ8XhOUZ8aRFvf5Pd7Zvfa1r5NjpecOT2W70ndctn1p95zWje5yrww72NL8br3i37C+6ikVjlZn7nL+PbL9XaA36cYVWr5H6cZ0RNKmqZ586w8h1f4nyu4fz8mbuO+pzNA57NDIub3APPxYAUrNDFCb1SUyJpPot2BjXfLDA+RdH4HL9zAfmHJX4\/+xrQM89Ugw+M3JiJL75vmjWfvn\/6DHfQSCgXY\/6gU85vxt04o+OqVoHvs9qsquV85h5Wvuu78p47jN9zjWv9kbumh8R59ttaPyP6LYbFTe4hBqOLisEBzqro+RybImA7E5DQuRrx\/Jw8IJsuKT8D+ZkYw17Y4yqIh\/M1FCtoLoItJuqvuFKjTP7BBnIg6pIb9V04qqNqIMcS81zNakZVLX\/D99w0AZvm3T3meLbuWtrEulrpNcM9MyxnNoQokASLzgJiKOAojuD5WVNwAmTihUR\/YCaWRJ\/5nP1kn5mPM9y5vwJf8dnpF+9DzHT4NldqlHG5mXXhM5rejaM6zu475sZWXcLRWp7xDd9V3xGX95HcmLfuehbn1jMzXPzDclQcwXMSQIJlx2LATjA1jwqiPzATUEk1OxufGREX2xZVMX2C4otJ7GKDo\/FVcAeNBDmRdYn66TP5xL\/6fAeO6rinVvkcY2XERlxVy0fX7\/Hdzc96gYjxre561uSdJivYOzMsbnIPPBcdwdkYgAKMgs0uMzaPs+T9EdBdBv5wkazlmUy8ZME+MTFXuH1\/jdNWsWeydr\/gDhoJ5UIsaO5c+rn5nO9XcUbH7Huu1Tyvhqga4HPOlzO1XO27\/Iz3BLNah7zf6q5dfwDmj\/QIcD4Ny8zhFTyXLweHsTP4HH9dcHx2mRVkf\/gcBRfya3Y2wufmpWf2UhXTJyi+WCguNmBdTuZvcweNIipIDadfZNYEfg0+nGGrVh3Mq56qavkbvmPLd7LVC1i\/+jGJdz3TyWmygj0zw+Im98BzK0diI5CAkZlgZ8j+zBJFAkrsfCnOT2fb4qymlSj+GJ9LqpkO3+YOGm2xp9Ewn5vAr6nScfajLWKtVtXyN3x3DdLlPd+PnK+7nsV5Jhfc+cNyVhyeiwI4QeIahMviONtZsj9qOFGsbMvPgLMR25\/QmIkr++Zsv+AOGglXuDE3XZ5e9YOWOaPjqlbjZxE1qqrlb\/iOD\/gSyTb2mJ29umtXV862B+fDsMwcXMFzUSACImCRvys4PaNg1CQ\/JfsD2QcEj6KTbDH+vF4c9TPueRWzZCE+4hSsOfKjU8UdNBI5F2ffY35lHa\/ijI45z933uG\/Wo6qWv+F79gUf+a46oP7j+oye37rr3Efy\/F5c\/MNyRhzIzgPOYme44BW0Rn4+orV7f4Vm+618UhJqZNhz6yIdbp9fs6VfjPdMQlVwB40i3HPURYUtcu5epVsGX85wtC5WemzV8gyeO8PK99ld6gfFjbjPnrtmveZjkz4Cz2aGxU3ugefOXMYR+Etub2P+FlzK0b8oz2r6JlqjGp6s49tzwMU\/LGfF4blvN+azv0RV6Bf2KG9PuD20RjU8Wce354CLf1jOisNzjKP\/mb8XmuLV\/7lIbL\/8T7Q30RrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5h6QKppzVd0xrV8GQd354DLv5hYbJHjx49evx+ZP7SmJtaWtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WveLEd6DO3vE7s2t8672mDl4+tLXf7M1xsmvEV37KtnpxE2vuQn6vLuPql0PBXTSa5QFsaZbf+cv41gu9tuDcM2TfGfGdy7He8xzkecavXo+bz2VE\/2JP0XAvI5vdfb5bVy8x\/rP3zrOZYXGTDhyZFbQczI0Zh3Nji9\/znqyvaBoSlv0dsflmsOkStS5eKv6vLsLtexVocLRgfsEdNNrKg1Xu8nmWX7\/kjI6KO9erIK4Ym+opN79YF2f4hu+QfXXM7l6xxv35nvtU1CfrtZd8NgyLm3RwcG6aCkIjBqO5CDY1NYTLz8j2Cfgpf5xYFJTm81nM5aabC9CtyeR9rwRfVkl6BVdrtJUHq9wFcoI9ruaMjjmWDHvmnIn1r6YWa\/cM3\/B9Tw\/ZuntinPW5\/Fmc1SPvA8PiJh3xYgQCIYTEiI7lhgYxgJnAzM8aifMhwnPak3X5fIjn59jdpeSLflJjjnrfjas1ki4uD1a5C+QAz17NGR1dfCti7eWaOMs3fJ\/1lYju0d29I66b9ZUzuLOHZa848WIyrjG7JgesY\/1M4KqEXwnoLoX1+BXJBcn8UxqzkhR\/NKqS6lPupFH2ZZW7yoms7RWcOZccyL5v1Zzi1RrVQHze6bWC546y8h0\/8nyuaeHu3sGZqhv+ZT\/O0f6cdwZ39rDscQxwaCa+a8yz9axDEOYUbIQgZ0IeYba\/cJfizlZSEiMoKbfYq+m3wdd8L\/i+pcuvuItGLg9Wuat857Ng\/RUxnTkz54CLJ5LXu1j57jTb4hu+MxfrU\/Xreoq7+0yuIfaP50E+cy\/u7GFZOSY4fCa8a8ysdetZx3oCjgILApwlyBE42+0v3KWwPl+gLlaxMb+6hL2aXoG7qyu4i0YuD1a5O4P5itw9QpWOs3oh1\/ec4XRc8W3fxaxmVz6rKcc75ZxZbhy9e3f2sOwVZ+YQuGJ3jTc2OYJwYjG\/lfx7WV2WuxSeyTEqNvH0xhzv4EruopHLg1XuziAvjhbnp1Tp6GImnlWui1wne\/im75FZr3F3L9iTudyLOIe5zJm7d2cPy15xcOhIY3ZBR5t7xtnOcqYxI3i+wGxzazJ536twd3amgL7BXTRa5amItlkOMJ8L+dsc1VE\/MNnP\/EcJa2Z5jj03J\/RZ1UXmG74zjy8RfHW9wN0zsJc7B2Z7zdZv4c4eFjfpONqYgYvKlx0vlD1jkHn9J7CPE1DMLiX6qESIF83cKgHdvlegGGPCxPiu5G4aZbZyV3mxlcu\/4oyO+BlzWBqofpnbioW443pXJ3v4hu\/cWdxXvck1TXf3OTYH8\/nuVz3Bkc+GYXGTDg6fNc1ZYwbsGu55AtL8VjLAlg8Z1m3tNytIJZlGvADg++oS3L5XoThn8VzFXTSa5QFE3XLe5TxZ5e634Owz4G\/0X7WrWnYjxqgGpoGOR+G5M8x8F9xVnHdNGdzdx36URzwnrjvTlIFnM8PiJh2IsbcpfpOrfXhaY74rrVENT9bx7Tng4h+WveLcoTHzy3f1X3zdmGtojWp4so5vzwEX\/7DsFSf+50P+T4dfwQ\/DVWeD4u\/G\/DmtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiH5YukHpa0zWtUQ1P1vHtOeDiHxYme\/To0aPH70fmL425qaU1XdMa1fBkHd+eAy7+YekCqac1XdMa1fBkHd+eAy7+YekCqac1XdMa1fBkHd+eAy7+YdkjDi8OYh0jvpNV8F5TZxe8Fc69+Ce\/+\/XMO11n4E\/eL8bBcD7l98zGlya5PR08dxdyPFe\/nU\/cRSPlxBbkSX6nr97lG8fq5VbfYOX7DHyNvueXg+W8yVTUrtt3Dyvfj\/jGi9Fy78qxM\/Ka6MNW79uCZzPD4iYzSt6cnKAEnTknkXLS5j21zp1xFHxhr3ghOi\/aWBf9UixCFxThe06ETH7mKrL\/0uAOzfkOGkmPLV9UgDkv0fBsQVZyRkdiiq\/wVZ4or1d1IN0+rd245172+r7HN63N98j+8YwM6+N89mkvLv5hcZOZfBFCDdAFBzir+dgAgbmjgqyIhcaITZjP2YccF\/O5aWGL+zC\/8pE97wD65nj4nnW4gqs1UkFrZFTQGi73s7ZX4HzfQjmvRiZi7rs64BnVQVXt\/sr3mW\/sxfocC7ZY8xHlRfRBtqO4Z4Zlz4YSJCYnnwkA3EXpGUAorRUusV3zFM6HDH5oT9bOxBV5T7d\/vtQY14zV\/JW4u7iCqzXifO6SHHG+kJ\/MzfJuq3h\/SZWOxJPrMcI5ivdo7c6o9n1PjxDEoNrOvWtrj1mce8+NuPiHZY84q4BdcBHXDPieE5v99\/izB\/ZZFQ5+6TzFyL8R1uTYnO+Rqhi+Ab7HH5qruItG3OOWLy73ZUNL\/tW4gopzVXdb9R3rt6p2q33XZ92PRvaV74on9y7tEe82xu76AThNVrB3ZljcZMYlZ+RMY2a\/2eXm5ngGt39EZ2nN7GznO7FuNTf2uSP4fBff7uIH97\/li8v9nDtwlbYVZ7KHy2dpk2PN3+FM7bL+U9hDvsuHWK\/5rvJ98mzsXYpZ88C89szrBfP0iiNwTmZY3GTGJWdk5qxwzY3vs8utgH3y\/kLnxGRUjDmx3C8kz8VnM1UxVIK\/+DW7w19zF41UiDNWuR9h3SznvsWnOvJ8rk0Ha5TzVbVb7bt8cDWsddRybKDEtNW7IOaA6wfgNFnh4h+WPeKsknMVnGvMWSAgsLzuLPjrhNLl5bPBxUhsSkjhbJE9mv4SfMWnnLBXcheNyJEtX4405jPF+Smf6Mizq6YkYm1W1W6176rtjHzTXc7GVn0wz\/6zODV\/BJ7JDIubzHyjMbtnVvscAX9zkfAdu2vKgI95ztnw8SmNGV\/x505NGe6ikXJihst9l8+Q1\/2CMzoqplmtMZdrJ8ZcVbvf8j3fAb7P1me\/XRw6k3\/ZW5+Fs+2BZzLD4iYzcmyWdKtLcYmsPZUACm52xlHi3qD9c8JFVKQSGL\/5niGWrX3cM1fAvdzFl8xd\/NKdz3C5Lxv5Icj\/rRr4Fmd05BlyY0bOm1yrVbUbz9gLz2z5nmt2Vfe5d7n11Hs8M991nt+Li39Y3GTGJWckB5dxjRkkgsZMPFj5kMn74WM8K464TherwbkR+bzFav5XxDjyuJo7+ADc\/ZYvs7yTXeOKpgxbvjsUrxuxueQ6yLV5pHZn8NwR9vqe12355npXji3uLehnmj979zybGRY3mTnaFL8FAl\/tAwnrLiqyR9O30xrV8GQd354DLv5h2SPOXRozDTH\/Bftr0GHlw9sTbg+tUQ1P1vHtOeDiH5Y94sT\/bLvqP9ngyrOB8\/mLecXbE24PrVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h+WLpB6WtM1rVENT9bx7Tng4h8WJnv06NGjx+9H5i+NuamlNV3TGtXwZB3fngMu\/mHpAqmnNV3TGtXwZB3fngMu\/mHpAqmnNV3TGtXwZB3fngMu\/mG5szh6edLsNZvMnXkP7Le5WlPO18ja5ffsMq54ORTnNp+zR8f4ErI43FsSqSeXD6v3L5NncZ7xjdfj8kw+O74bmZHjYn2c33pLJvWR3x2fn89xZW00Vrg1w7Jng6uICZUvA2b2q7lKU+kV34CXv5NUq4L5BVdp9KexR0c1jhVqQLkxK69Ua9ovNri9b16M7PEpwhnRD8j\/7yH6w0PNWTFFX\/N3obhiY9bzsdnzPZ7JmtzM98A+mWFxk3dBCaFfxAy2eEl34SpNSZZcVDlp+HwHze6cd09ij440K\/dXcERNj5HXuufzDzzPuWa3xZEcUB7zjPJX\/SE2TWCdfiT4HP0Ennd6sFZD5DiB56Pvbs0eXPzDckScXyPh9UuWg8d2hyaTuUrTmJAzpOfVXKXRn8YeHVeNg3xQM2Ld0cY8a5Ar9uZA7gOrmo91wOe8XvtEFDfPxcbsyI1Zzx3FxT8sbvIuxAuRmPwr+N6N+V9IHxKLz4xYkNIwzq+S8FtwdvM5e3TkjuOdM2IdRVxjVh2q1pRH+s6\/ef+8h4N1e4iNL57rkG+KD79y0+T5eLaegT2NGX9ifDyb49\/zI6UzI8PiJu9CbMxA0kR\/+bx1SVdxlaacy4hJwXc1ZyWk9AQSbJWI3+Aqjf409ugYcwBcHgjXmEG1qBGfpZlhi3lHTrl9IjyzIjdKntmqeeZjrM43vsez456rxpz3ky7YhTvTEX0Qw+Im74KCjknAdwnP527M\/8LpgXbYZ0niNP4FV2n0p3FWR5pmbGDCNWY1mgjf3fNilXew8l25Gffg+6zmmXNNVf5ryDcghhgHa2eNWfvs6Tnswfot5ENkWNzkXXBNA1Fk2yvSr7lK06wVuOTOuOe+zVUa\/Wmc1TE3JIEtN2aazOwHf8bevNsiN9Q4so\/ONoNY1HzzvnHEmpAve+sEX17VmIHkwc7oxvwvXDLEAnJFt6eAvsFVGv1prHTU\/ef7nTWOWWPeyivW5yYf52ecyQGeiTWv\/M0+C\/zKvjl\/BXHmv5hZyxm5DwG+uDjcj1nGPTcsbvIuzBozYGd0Y\/4XKoaoF9+VhJqPmpFAsyT9Jldp9KexR0fuODYums\/sOXIhNzmtj82d78obNaecd67xR2Y+bMEzMX+jHw75Jt\/z90xuzC72TPaBz7m5O3guMyxu8i5sNWYJHC\/pLlypqTTTyEmr5jyb\/xWc3XzOXh1pFPHeZ5AP7q9PNSiNnDeqR41VUwbWHYVnVPP5zDiif9n3rSabG3PWLY64T7TvacrA2sywuMnmM1rTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfli6QelrTNa1RDU\/W8e054OIfFiZ79OjRo8fvR+bdP1VN0zQ3pBtz0zTNzejG3DRNczO6MTdN09yK\/\/mf\/wPRLdqQ\/r5nvwAAAABJRU5ErkJggg==\" y=\"-1.5\"><\/image> <\/g> <\/svg><\/span><\/p><p><span class=\"math-tex\">$\\overline{x} = \\dfrac{\\sum n_i . c_i}{N} = \\dfrac{5185}{65} $<\/span>&nbsp;= 79,77<\/p><p>\u0110&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp; &nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$\\overline{x}$<\/span>&nbsp;= 79,77<\/span>.<\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2023-05-28 05:35:13","option_type":"math","len":0}]}
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