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缘牵一线624木虫 (小有名气)
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[求助]
求教大神们:离散随机变量的概率密度的求法? 已有1人参与
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问题: 我在统计某一生物细胞的尺寸,统计总体大约为九百多个,得到一系列离散数据,那么如何根据这组数据得出其概率密度呢? 例如:这组数据如下 x=[7.164700491 7.640463854 7.799701938 7.941122713 8.022293777 8.121084064 8.180192015 8.244923163 8.287128382 8.303149583 8.426283946 8.445974807 8.487180291 8.539865301 8.568996849 8.588360513 8.711278289 8.871894361 9.088335073 9.155717646 9.188319919 9.200967998 9.480198942 9.615910382 9.631445646 9.641789682 9.659004577 9.727557873 9.787147103 9.795631419 9.834559821 9.963779947 10.12749663 10.21731701 10.22869263 10.28860912 10.35620372 10.38823594 10.39303264 10.43132531 10.43928457 10.44723777 10.6034936 10.66130422 10.70174103 10.7157037 10.72500056 10.79293972 10.829817 10.84667902 10.97306343 11.12939958 11.16367945 11.19933602 11.19933602 11.31444598 11.34084411 11.35840832 11.37156472 11.41530708 11.56279312 11.61869101 11.64725303 11.66293192 11.66293192 11.72260324 11.75656613 11.78620185 11.81435891 11.89563427 11.89703169 11.94719406 11.99991773 12.07994469 12.16081207 12.19219234 12.22620788 12.24928569 12.26554908 12.32230333 12.33712485 12.35461697 12.36939927 12.37879711 12.45505806 12.47771134 12.50696748 12.54940047 12.55734033 12.62331404 12.63120819 12.66666848 12.67191337 12.68632596 12.69679733 12.79195483 12.79844736 12.80493535 12.80752914 12.8580169 12.92631124 12.99808168 13.04783214 13.05165143 13.06691621 13.06818839 13.11893779 13.16065963 13.1707551 13.19595697 13.19721549 13.21734168 13.26000644 13.26125889 13.27127663 13.39090741 13.41569691 13.46637118 13.48855731 13.55612654 13.58183735 13.59284071 13.60872016 13.65016157 13.69633011 13.70481807 13.713301 13.73387995 13.76891403 13.8170911 13.85910793 13.88066749 13.92726556 13.99746337 14.00458296 14.0306557 14.07085573 14.10151774 14.12976373 14.18374305 14.22351041 14.2771353 14.27829853 14.3571982 14.37569937 14.38378643 14.41724165 14.45406738 14.46670458 14.46900047 14.54343922 14.57652768 14.58792036 14.59247472 14.60271657 14.73747444 14.8083188 14.86318819 14.86430555 14.95344793 14.96677318 14.98673936 15.02327494 15.26678673 15.26787456 15.30482418 15.31350617 15.34493319 15.34601652 15.3525097 15.5578139 15.58874941 15.61324054 15.61536888 15.62175113 15.62919345 15.64194304 15.7498994 15.77414033 15.82461096 15.86654735 15.86864171 15.89061134 15.90628406 15.92820276 15.96882612 15.97402749 15.98961845 16.10453115 16.11793518 16.17349704 16.18684494 16.22374901 16.25750488 16.29934644 16.36850664 16.37662424 16.40601587 16.41613797 16.43939749 16.45757623 16.47170224 16.50092451 16.54215037 16.54616684 16.57926627 16.58728025 16.70802565 16.74378219 16.75667564 16.76757752 16.81506661 16.93811046 16.9390919 17.03980727 17.06026784 17.07097604 17.11568264 17.19025702 17.20184963 17.21536493 17.23754512 17.28278201 17.33556872 17.34610586 17.36907623 17.41969381 17.48727381 17.55364662 17.55743169 17.63955818 17.65179661 17.68658403 17.70254489 17.72224034 17.78867098 17.81759758 17.8297147 17.89852857 17.95968592 18.12817071 18.16935546 18.19311657 18.29328477 18.32595007 18.3341073 18.35131332 18.38206513 18.38567706 18.45152023 18.54491878 18.69569418 18.75247754 18.75336912 18.7799188 18.7958357 18.90072118 18.91653643 18.94199157 18.94637084 19.03560191 19.08179677 19.12614844 19.17992249 19.19204818 19.25771415 19.26806374 19.28099292 19.36009752 19.3755378 19.48582696 19.50883354 19.57938601 19.6344621 19.81301927 19.85991546 19.91922382 19.92421949 19.97335805 20.10021073 20.10186638 20.18186422 20.21229997 20.27220808 20.43869971 20.49551761 20.52953442 20.54328195 20.5756024 20.59900746 20.62157518 20.64733446 20.65296897 20.65457492 20.7027799 20.74126322 20.74366606 20.7484709 20.77726894 21.02999072 21.10805533 21.18111916 21.27190516 21.48559731 21.53039623 21.53810872 21.55507684 21.62586473 21.62816929 21.71096321 21.7652209 21.89914636 21.9203756 21.97789857 22.03903601 22.04808006 22.09925497 22.20424875 22.27819905 22.28565275 22.30278752 22.36081508 22.37195697 22.44831289 22.52514518 22.75992259 22.78618422 22.95542621 23.00530955 23.05652152 23.08316452 23.16147829 23.22522651 23.27524313 23.29735777 23.3166038 23.33013551 23.33867925 23.37282297 23.38632215 23.43386819 23.45087697 23.64066856 23.67507625 23.68840319 23.71153607 23.73744388 23.96936075 24.02404581 24.06964417 24.08758567 24.11515632 24.12824019 24.15714213 24.18051145 24.37552547 24.48771953 24.49925256 24.54260562 24.55140843 24.55208295 24.57170062 24.61020321 24.6574119 24.72200856 24.73678635 24.74752706 24.86004776 24.87073588 24.93610944 24.96939528 25.03185868 25.12658399 25.18139921 25.21634416 25.23543914 25.25452599 25.51498873 25.69858357 25.77668675 25.89371957 25.89692331 25.95139381 26 26.00447046 26.00830343 26.01724685 26.03064705 26.07145986 26.07210115 26.09375551 26.11284917 26.11411752 26.31121918 26.31311339 26.36798024 26.47612793 26.48051802 26.49368991 26.49368991 26.51186491 26.51875913 26.56006892 26.66743762 26.66992748 26.72779154 27.4029672 27.41387788 27.52515352 27.60771608 27.79004542 27.94266195 27.96643234 28.02280691 28.2053943 28.20598143 28.46978508 28.56008863 28.73059024 28.76353185 28.80220268 28.99707321 29.07659553 29.20372653 29.22022138 29.40893317 29.41570597 29.56049072 29.81844212 29.90800651 29.98567068 30.43111674 30.55913657 30.79362164 30.82004476 30.94162369 31.24084273 31.28441544 31.30777462 31.3448916 32.08244753 32.37420043 32.42137476 32.47922413 32.53646166 32.55738687 32.69689987 32.90859276 33.28354828 33.51929761 33.55892242 33.75093771 33.84433266 33.87131887 34.41528415 34.51939361 34.77256862 34.77591139 34.82698822 34.82985029 35.09546126 35.25791685 35.26451456 35.60021291 35.76595453 35.99559863 36.06752337 36.18019305 36.26274869 36.38897257 36.50611152 36.53249143 36.54431478 36.56521963 36.92194383 36.95117712 37.08088078 37.53728083 37.6133277 37.63451881 37.72446198 37.76143266 37.80320311 37.84273525 37.88924103 37.94269481 38.15706311 38.39057989 38.43339428 38.45759514 38.51069005 38.69359054 38.96398795 39.12354676 39.44029996 39.61429887 39.68594466 39.84761179 40.33367593 40.41678957 40.786264 40.81598444 40.84650076 40.84812636 40.89893206 40.91273921 41.28300648 41.43363583 41.52134744 41.5797216 41.6499784 42.31594089 42.73705339 43.1555954 43.3457243 43.56439702 43.59870199 43.9905498 44.35309969 44.35460036 44.38081082 44.8288536 45.12544793 45.81160187 46.12780984 46.2964107 46.30860859 46.3641808 46.93963463 47.08028108 47.25251316 47.40449668 48.14653522 48.23375275 48.49994419 49.49538999 51.14443766 51.21357802 52.17572892 52.52796344 52.77878965 52.98392978 53.60362308 53.67330998 53.85993276 53.86085517 54.00316398 54.27993318 54.29492475 54.31113949 54.6490016 54.74831818 55.23378512 55.28068505 55.94503672 56.06842953 56.25655517 56.46406895 57.034016 57.13733595 57.36454552 57.41692975 58.39037854 58.57446673 58.58126263 58.72995525 59.14176534 59.1639738 59.25038633 59.31874388 59.84321341 60.09061629 60.45361964 60.48163905 60.77291447 61.18157168 61.21386234 61.34290692 61.39057377 61.58588845 61.73272986 61.73435489 62.0647135 62.06525229 62.13989252 62.20561242 62.41225688 63.01938333 63.24882618 63.87530149 64.08302238 64.63567669 64.94105608 65.77981511 66.25015323 66.46044271 66.61150319 66.78337449 66.92302356 67.2513822 67.6007387 68.18383263 68.59509184 68.77793584 69.07535348 69.3053798 69.30799901 69.34419827 69.43995711 70.28742175 70.36465528 70.37954429 70.4080916 70.68196015 71.54166752 71.93324489 72.23861293 72.37002406 72.79711795 72.89653256 73.03360626 73.07316811 74.04160476 74.15839907 74.16937708 74.31236149 74.44212902 74.52710788 74.73656495 74.88513497 74.89776471 74.99509538 75.05441763 75.09802511 75.53849147 75.54376131 75.77453566 76.32913561 76.36961746 76.43441467 76.51066284 76.66250796 76.85166455 76.89509978 77.09252857 77.37537751 77.58293282 77.66062049 78.41505201 79.56650065 80.40704567 80.53875121 81.04559541 81.14987707 81.56926251 81.81776394 81.83379926 81.91252908 82.10962456 82.53300826 83.03270402 83.19319852 83.51884871 83.66034987 84.04470679 84.37867708 84.46448015 84.54094851 84.7011419 85.17036131 85.24970815 85.40275507 85.60210129 85.80194941 85.85285887 86.05501129 86.27577617 86.63987623 86.67861056 86.92873573 88.31393049 88.51272894 88.58701505 88.61027172 88.63425888 88.82821753 88.93850305 89.16645138 89.34011446 89.79342889 89.89641952 90.00500694 90.04542378 90.71209794 91.04681374 91.22836538 91.35756029 91.42281211 91.42826362 91.4615056 91.90924283 92.05661509 92.14499789 93.44667065 93.62144264 93.83553847 94.09667748 94.45719888 94.57918867 94.87678902 95.30602737 95.44188214 95.58972175 95.60901005 95.7413248 96.06680597 96.53998215 97.12123883 97.18979724 97.39232173 97.67318442 98.98809682 99.08521071 99.36148057 100.4812148 101.0621616 101.2648039 101.3777699 101.9390976 102.0674343 102.8258484 103.0512982 103.1718158 104.5680682 104.8452454 104.8555421 105.0712527 106.0859959 106.2399789 106.4188636 106.631113 106.875128 106.9007665 107.5561178 107.9794154 108.3130489 108.5641523 108.6037764 108.6436939 108.6461416 108.8444224 109.0352015 109.4766066 109.7365403 109.7652968 110.0502202 110.3688748 110.5230471 111.0350263 111.0532666 112.1561128 112.5689032 112.7087306 112.7380426 112.9953356 113.1397591 113.3817743 113.7502572 114.337889 114.4391057 114.6359372 114.6591182 114.6683948 114.6799757 115.037089 115.047913 115.1392815 115.5119317 115.8092546 116.268386 116.8176092 117.3138585 117.5236824 117.6076144 117.7779812 117.7943393 117.8975319 118.162147 118.2217365 118.2615045 119.2254328 119.9717589 119.9979299 120.1246698 120.4932128 120.8952671 121.2914687 122.0485703 122.1726485 122.2690127 122.9791811 123.3404098 123.5788384 123.611769 123.7481133 123.7783102 124.1393556 124.4410177 124.4725176 124.5081534 124.7182557 126.0540401 126.1735106 126.6415021 126.9263666 127.1463122 127.4827077 127.9775931 128.0728296 128.115891 128.3688828 128.5841691 129.0148365 129.0566829 129.9704646 130.0128974 130.154526 130.2193519 130.3373013 130.9830664 131.1651971 131.1786233 132.9037773 133.1255812 133.2539241 134.3084434 134.5407854 134.689369 134.8000761 135.1193858 135.4185538 136.627032 136.7184447 139.3816303 140.0187885 140.0349251 140.2808602 141.8836991 142.1875612 142.7825281 143.1498257 143.481007 143.7524965 143.7761773 144.1174437 145.9782387 146.162134 147.6535798 147.6719121 148.3161325 148.4998231 148.7203741 149.4546882 149.5703507 149.590013 150.6266634 150.8253936 151.0395717 152.6590535 153.0448812 153.129956 153.6188931 153.8911643 154.1135945 154.6857818 155.4812623 155.6339818 156.0029703 156.1866636 156.3643976 156.8404906 157.7603702 158.4699855 158.7956765 159.9698419 160.7191145 161.4880643 161.5294081 165.6936395 165.7165968 166.6460837 174.2490987 175.8195912 178.655096 178.9434669 179.3570435 180.5071588 181.09425 181.3282557 185.0768475 185.1148722 189.3376824 189.8807034 193.6341188 194.5151575 201.4786107 203.1540315 ] 求大神指导,给出求解方法或者求解思路哇! 谢谢。。。。 |
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缘牵一线624
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4楼2014-12-08 18:55:43
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