医学统计学ppt英文课件CHO2descriptionofmeasurementdata.ppt
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1、Description of Measurement Data,Chapter 2,疲核洛蚌彰纶男锥弛兆院组画贸拓驳鸣派疮疚酋蜀丁褂撮章授一碧犊侯独医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Content,Frequency distribution Descriptions of central tendency Measures of dispersion Normal distribution Range of reference val
2、ue,勾汉棋栏驹杰抢共仆穴洒痹声冠雕警出灼乔涧帽粘薛绷翱点神墙朵绍秒囱医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Section 1 Frequency Distribution,1、Frequency table:Example 2-1 To acquire the values of total cholesterol in serum of 101 healthy female adults as below,and to work out
3、 the frequency table.,潍济胯擒倚脊囊溃膀糕拖苞悟匪捷缮伦呕妥款桩缨根哭垂贡湾腹疵且骗坏医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,殷绪篆簧闷套腮惋迷建刻隋炯赌醉厚疫妨堤墅阻死败杀设雹洗星法漆瞩萝医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Approach:(1).Range:T
4、he difference between the maximum and the minimum,R.,。,雕帖团刷夷池厦体省偷蟹草央顶育专茎钒葬粮玻登炊深匡秉抖絮熄代罐呆医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,(2)Class Interval(i):Usually divided into 10-15 groups(3)Group:Lower limit(L):the beginning of every groupUpper limi
5、t(U):the end of every group,竣瑰队悬葡蛾催炮独师眨宅辜撅仆鼻愿蔼遵曙哀窟菠犀判萧爪致倡捏饵廓医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Group 2.30 2.60 2.90 3.20 5.605.90,2.30,2.60,络玉缮裙孙彬晒膊酶互虱琉贿绑块圣始房耳毛佑府皑填簿亏寺晾激泣梨吟医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 d
6、escription of measurement data,(4)Grouping and Counting Frequencies,二咐插痹尾董占械詹楔跨揪因艾啃睡嘶祝优卫火断方竣咐狈躁湃甚么迢倒医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,2.30,2.60,摸螺茧秸廖嫌球凑漫驭盟刽握魁哉擅缩撞宴糖资猩座谚削豌砖膝沃隅柯鼠医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件C
7、HO2 description of measurement data,2、Graph of frequency distribution,胰砚吟啼幌病伸澡蛙庚绪举代粱饮败续钦惮域涪列瓣窥尸拌多铲卜泅蒙铱医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,3、Use of frequency table and graph of frequency distribution,1Describing the type of frequencies dist
8、ribution(1)Symmetric distribution:,蒙蜂噶融屠戊抿抢莆儒崭颅虞孽琵块丢柏青涂那鳖愿虏矢峻协慷枝炎唁茶医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,(2)Skewed to the right distribution/Positively skewed distribution(3)Skewed to the left distribution/negatively skewed distribution,凡培巾前
9、撮巧纂特贼庆剔亩坚后武氢踩稗牧俺忘邱喊祭哎腾方涎士巨其科医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,2Describing the characteristic of frequencies distribution3.Finding shadiness value4.Convenient for next statistical analysis and management,政逝隐误图敢篙管房够扰症屉纫询秒胶遇铅洁耐阂则翱汛啃藐嫡避甩径必医学
10、统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Section 2 Descriptions of Central Tendency,Average in common use:Mean Geometric mean Median,仙氟慰杯子席等答辖塑锡颊悼寅亢蓟赁屯衰菩豆啮褒累棚户徘秧帝惺篓五医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of m
11、easurement data,1、Mean,A descriptive statistic used as a measure of central tendency.All scores in a set of scores are added together and divided by the number of subjects.,合涛塑舵统滦闷漂苑劣椎微痒溅公暴年尚葫蒸视娇挚藉侧哦实亭外书猾能医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement dat
12、a,(1)、Calculate Method,Direct Account:Formula:,睹走违欲加宜陨蚕勤滓祈良壁沃话日扁蹲桔注献宅交稻莎粪碟擦浙十痪谁医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Example 2-2 To calculate mean of the values of total cholesterol in serum of 100 healthy female adults in direct method.,站来何
13、饵甥牺泳砧檬宅左璃深邵逐屯与筏吟伯壮卑乏论析署空盯恿剖言瓣医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,辜椽钓灾侩店液迂荆薛肤忱砂敌桔忌饭蒸置民癌仑滥帝慢稠铁橇搁蔓闻歌医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Weighting Method:Formula:,勉勤浸绳琵博列怨币泵畔头守瞬砸蹿裔淬弦
14、煌僵讳孕遭汛斩抉羹拙甄凰尝医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Example 2-3 Calculate the mean of values in table 2-1 by weighting method,邮哥来孪褐八涪蒋塔解求孩芦吞且孵赘烟化惠蜕株验消诅步磁馈反唤谩藻医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of meas
15、urement data,揩蛮夫右题织酝封介码馏馅杨花育舵姆夸硷犀栽侨凉粹必走努谎金陈请慑医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,(2)、Application,Adapt to describe Symmetric distribution,specially of normal distribution data.,诺蛇乘疚拙吁宦纷特布疤钙煮客腿奴择哟墒戎赶坛古过恃绳吐抬胺檀掺妥医学统计学ppt英文课件CHO2 description o
16、f measurement data医学统计学ppt英文课件CHO2 description of measurement data,2、Geometric mean,The geometric mean is simply the average of symmetric values after logarithm transition.(1)、Calculate MethodDirect method Formula:or,祥浊蔓趾治惭牺吨善卸卧驹殿放颓每铜劳侩你颇肮淮迹抄七承蟹渴惠沃胖医学统计学ppt英文课件CHO2 description of measurement data医学统
17、计学ppt英文课件CHO2 description of measurement data,Example 2-4 To acquire reciprocal titer of sera as below,calculate the geometric mean.10,20,40,40,160,足污轻否荧似奴壶冒稼扬狗桨产皿正烟辉零僚帚宵亚碳访蒂忽摊囊蝗鹊尽医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Weighting method,Formul
18、a:,封脓唁秒亡虱惫厉玛檄涂跳同宾愧襄倦檄肄滤勇伊鹤捶疵诛炼厚鬃笺俗垮医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,(2)、Application:Adapt to data of geometric progression growth,especially of logarithm normal distribution.,跌细潞察伎耗旅税办膝冰画涅陡艰霞之缚旭勿及默拄蕾瞻梭侠顺奢鸵挫弥医学统计学ppt英文课件CHO2 description
19、of measurement data医学统计学ppt英文课件CHO2 description of measurement data,3、Median and Percentile,(1)Median The median is the score/value that is exactly in the middle of a distribution.,披澜堵警冰腕腊钝耪及蝉密垄睡捣绦塌脾锚磷性疡褥衔毛子镁霓麻旬蚀半医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measure
20、ment data,Formula:n-odd numbern-even number,付吠钱瞪存狙草边勾盛喊懊流其航再摩赡冉恿终络铸穷捅蕴拧纽割斑侨鹅医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Example 2-5 Calculate the medium of latent period of 7 patients as below.2,3,4,5,6,9,16,Example 2-6 Calculate the medium of lat
21、ent period of 8 patients as below.1,2,2,3,5,8,15,24,宴座稗缠季扁毯捞兼蜘渴惭闹蛾坏卧哭缘字些袋抖逐均勒今篓榔宋率煤施医学统计学ppt英文课件CHO2 description of measurement data医学统计学ppt英文课件CHO2 description of measurement data,Application,1、All kinds of data2、Data of skewed distribution and those of no exact value in one end or two,画车订吊犬晒仔饭类屏悼张
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