Các số đặc trưng đo xu thế trung tâm

Home Lớp 10 Toán lớp 10 - Sách Kết nối tri thức Bài 13. Các số đặc trưng đo xu thế trung tâmBài tập trung bình

{"common":{"save":0,"post_id":"6445","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6618","mon_id":"1158767","chapter_id":"1158885","post_id":"6445","question":"Chi\u1ec1u cao (\u0111\u01a1n v\u1ecb mét) c\u1ee7a các h\u1ecdc sinh t\u1ed5 1 l\u1edbp 10A \u0111\u01b0\u1ee3c cho b\u1edfi dãy s\u1ed1 sau<\/p>1,45    1,72    1,65    1,63    1,66    1,65    1,56    1,59    1,75    1,70    1,60    1,58<\/p>Chi\u1ec1u cao trung bình c\u1ee7a t\u1ed5 1 là:<\/p>","options":["A. <\/strong>1,65 m","B.<\/strong> 1,68 m","C.<\/strong> 1,63 m","D.<\/strong> 1,62 m"],"correct":"3","level":"2","hint":"","answer":"Chi\u1ec1u cao trung bình c\u1ee7a t\u1ed5 1 là:<\/p>$\\overline{x}=\\dfrac{1,45+1,72+1,65+1,63+1,66+1,65+1,56+1,59+1,75+1,70+1,60+1,58}{12}\\approx1,63$<\/span> (m)<\/p>Ch\u1ecdn C.<\/strong> 1,63 m<\/span><\/p>","type":"choose","extra_type":"shape2","user_id":"131","test":"0","date":"2023-05-27 03:52:10","option_type":"txt","len":0},{"id":"6621","mon_id":"1158767","chapter_id":"1158885","post_id":"6445","question":"S\u1ed1 l\u01b0\u1ee3ng \u0111ôi giày \u0111\u01b0\u1ee3c bán ra c\u1ee7a c\u1eeda hàng quý II n\u0103m 2021 \u0111\u01b0\u1ee3c cho b\u1edfi b\u1ea3ng sau:<\/p><svg height=\"110\" width=\"400\"> <g><title><\/title><rect fill=\"#fff\" height=\"112\" id=\"canvas_background\" width=\"402\" 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><title><\/title><rect fill=\"#d4aaff\" height=\"40\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"82.13793\" x=\"1.01251\" y=\"2.45001\"><\/rect> <rect fill=\"#d4aaff\" height=\"65\" id=\"svg_2\" stroke=\"#000\" stroke-width=\"1.5\" width=\"82.13793\" x=\"1.01251\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" font-weight=\"bold\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"14.84374\" xml:space=\"preserve\" y=\"28.45001\">C\u1ee1 giày<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" font-weight=\"bold\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"2.84374\" xml:space=\"preserve\" y=\"69.45001\">S\u1ed1 \u0111ôi giày<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" font-weight=\"bold\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"8.84374\" xml:space=\"preserve\" y=\"94.45001\">bán \u0111\u01b0\u1ee3c<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_6\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"83.15044\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_7\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"83.15044\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"110.84374\" xml:space=\"preserve\" y=\"28.45001\">35<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"108.84374\" xml:space=\"preserve\" y=\"78.45001\">10<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_11\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"122.5082\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_12\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"122.5082\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"156.84374\" xml:space=\"preserve\" y=\"28.45001\">36<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_14\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"154.84374\" xml:space=\"preserve\" y=\"78.45001\">45<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_15\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"161.86596\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_16\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"161.86596\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_17\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"202.84374\" xml:space=\"preserve\" y=\"28.45001\">37<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_18\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"200.84374\" xml:space=\"preserve\" y=\"78.45001\">40<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_19\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"201.22372\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_20\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"201.22372\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_21\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"248.84374\" xml:space=\"preserve\" y=\"28.45001\">38<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_22\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"246.84374\" xml:space=\"preserve\" y=\"78.45001\">30<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_23\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"240.58147\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_24\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"240.58147\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_25\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"294.84374\" xml:space=\"preserve\" y=\"28.45001\">39<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_26\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,1.2905991523429634,0) \" x=\"296.35004\" xml:space=\"preserve\" y=\"77.45001\">8<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_27\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"279.93923\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_28\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"279.93923\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_29\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"340.84374\" xml:space=\"preserve\" y=\"28.45001\">40<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_30\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"338.84374\" xml:space=\"preserve\" y=\"78.45001\">10<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_31\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"319.29699\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_32\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"319.29699\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_33\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"386.84374\" xml:space=\"preserve\" y=\"28.45001\">41<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"normal\" id=\"svg_34\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,1.2905991523429634,0) \" x=\"389.5188\" xml:space=\"preserve\" y=\"77.45001\">2<\/text> <rect fill=\"#ffffff\" height=\"40\" id=\"svg_35\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"358.65475\" y=\"2.45001\"><\/rect> <rect fill=\"#ffffff\" height=\"65\" id=\"svg_36\" stroke=\"#000\" stroke-width=\"1.5\" width=\"39.35776\" x=\"358.65475\" y=\"42.45001\"><\/rect> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" font-weight=\"bold\" id=\"svg_37\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" style=\"cursor: move;\" text-anchor=\"start\" transform=\"matrix(0.8556034564971923,0,0,1,0.2905991523429634,-1) \" x=\"432.84374\" xml:space=\"preserve\" y=\"28.45001\">42<\/text> <text fill=\"#000000\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_40\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"373.01251\" xml:space=\"preserve\" y=\"77.45001\">3<\/text> <\/g> <\/svg><\/span><\/p>M\u1ed1t c\u1ee7a m\u1eabu s\u1ed1 li\u1ec7u trên là bao nhiêu?<\/p>","options":["A. <\/strong>36","B.<\/strong> 42","C.<\/strong> 38","D.<\/strong> 39"],"correct":"1","level":"2","hint":"","answer":"T\u1eeb b\u1ea3ng trên thì c\u1ee1 giày 36 bán \u0111\u01b0\u1ee3c s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec1u nh\u1ea5t là 45 \u0111ôi nên m\u1ed1t c\u1ee7a m\u1eabu s\u1ed1 li\u1ec7u trên là 36.<\/p>Ch\u1ecdn A. <\/strong>36<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2023-05-27 04:03:26","option_type":"txt","len":0},{"id":"6623","mon_id":"1158767","chapter_id":"1158885","post_id":"6445","question":"\u0110i\u1ec3m ki\u1ec3m tra th\u01b0\u1eddng xuyên c\u1ee7a t\u1ed5 3 l\u1edbp 10B \u0111\u01b0\u1ee3c cho b\u1edfi dãy sau:<\/p>5      8      10     10     9     8     6     9      10      9      9      9     7     8 <\/p>T\u1ee9 phân v\u1ecb c\u1ee7a dãy s\u1ed1 li\u1ec7u trên là<\/p>","options":["A. <\/strong>$Q_1=7,Q_2=9,Q_3=10$<\/span>","B.<\/strong> $Q_1=8,Q_2=8,Q_3=9$<\/span>","C.<\/strong> $Q_1=8,Q_2=9,Q_3=9$<\/span>","D.<\/strong> $Q_1=7,Q_2=8,Q_3=9$<\/span>"],"correct":"3","level":"2","hint":"","answer":"S\u1eafp x\u1ebfp dãy s\u1ed1 li\u1ec7u trên theo th\u1ee9 t\u1ef1 không gi\u1ea3m, ta \u0111\u01b0\u1ee3c dãy s\u1ed1 li\u1ec7u sau:<\/p>5     6     7     8     8     8     9     9<\/span><\/strong>     9     9     9     10     10     10<\/p>Trung v\u1ecb c\u1ee7a dãy s\u1ed1 li\u1ec7u trên là $Q_2=\\dfrac{9+9}{2}=9$<\/span><\/span>.<\/p>Trung v\u1ecb c\u1ee7a dãy s\u1ed1 li\u1ec7u  5     6     7     8<\/span><\/strong>     8     8     9  là $Q_1=8$<\/span><\/span>.<\/p>Trung v\u1ecb c\u1ee7a dãy s\u1ed1 li\u1ec7u  9     9     9     9<\/span><\/strong>     10     10     10   là $Q_3=9$<\/span><\/span>.<\/p>Ch\u1ecdn C.<\/strong> $Q_1=8,Q_2=9,Q_3=9$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2023-05-27 04:16:42","option_type":"math","len":0}]}