四川大学《卫生统计学1507》19春在线作业1(含答案)
《卫生统计学1507》19春在线作业11.[单选题]标准差与标准误的关系中,正确的是( )
奥鹏在线作业答案
奥鹏四川大学作业
A.二者均反映抽样误差的大小
B.总体标准差不变时,增大样本例数可以减小标准误
C.总体标准差增大时,总体的标准误也增大
D.样本例数增大时,样本的标准差和标准误都会减小
E.标准差用于计算可信区间,标准误用于计算参考值范围
正确答案:——B——
2.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="61" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/497c6347-0ec0-488a-8f65-bfddac1d305a/200858149390.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:——C——
3.[单选题]t分布与正态分布的关系是( )
A.均以0为中心,左右对称
B.总体均数增大时,分布曲线的中心位置均向右移动
C.曲线下两端5%面积对应的分位点均是±1.96
D.随样本含量的增大,t分布逼近标准正态分布
E.样本含量无限增大时,二者分布完全一致
正确答案:——D——
4.[单选题]标准误越小,说明此次抽样所得样本均数( )
A.离散程度越小
B.可比性越好
C.可靠程度越小
D.系统误差越小
E.抽样误差越小
正确答案:————
5.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="61" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/4082e959-55af-4dc0-98a4-bff8a496a037/200858141127548.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
6.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="59" width="469" alt="" src="http://file.open.com.cn/ItemDB/25389/d0d0699f-ced5-404b-b4aa-854b159cdea8/200858144015742.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
7.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="93" alt="" width="484" src="http://file.open.com.cn/ItemDB/25389/efed0482-bc9c-4e58-a173-07182b4a05f1/200858145554100.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
8.[单选题]为了制定尿铅的正常值范围,测定了一批正常人的尿铅含量,下列哪种说法正确( )
A.无法制定,要制定正常值范围必须测定健康人的尿铅含量
B.可以制定,应为单侧上限
C.可以制定,应为单侧下限
D.可以制定,但是无法确定是上侧范围还是下侧范围
E.可以制定双侧95%的参考值范围
正确答案:————
9.[单选题]统计资料的类型可以分为( )
A.定量资料和等级资料
B.分类资料和等级资料
C.正态分布资料和离散分布的资料
D.定量资料和分类资料
E.二项分布资料和有序分类资料
正确答案:————
10.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="132" width="477" alt="" src="http://file.open.com.cn/ItemDB/25389/2963bdff-6a49-47f5-a616-065df17ebe56/20085814464220.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
11.[单选题]假设将一个正态分布的资料所有的原始数据都加上一个正数,下列说法正确的是( )
A.均数将增大,标准差不改变
B.均数和标准差均增大
C.均数不变,标准差增大
D.不一定
E.均数和标准差均没有变化
正确答案:————
12.[单选题]下列关于标准差的说法中哪种是错误的( )
A.对于同一个资料,其标准差一定小于均数
B.标准差一定大于0
C.同一个资料的标准差可能大于均数,也可能小于均数
D.标准差可以用来描述正态分布资料的离散程度
E.如果资料中观察值是有单位的,那么标准差一定有相同单位
正确答案:————
13.[单选题]甲、乙两个医院的等级相同,规模相当。在某年疾病统计中发现:甲院对5型肝炎的治愈率都高于乙院,但总的治愈率却是乙院的总治愈率反而高于甲院的总治愈率,造成这种矛盾现象,最可能的原因是()
A.两个医院对预后的诊断标准不一致
B.两个医院各型病人的构成比相差太大
C.两个医院医疗技术相差悬殊
D.两个医院的领导重视程度相差悬殊
E.两个医院的设备相差太大
正确答案:————
14.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="57" width="477" alt="" src="http://file.open.com.cn/ItemDB/25389/bdb0b240-12fa-44e9-b994-d91d536ddcb9/200858144620894.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
15.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="105" width="470" alt="" src="http://file.open.com.cn/ItemDB/25389/11a839e7-7289-4c7c-9d6e-b0f1c3ccff60/200858144554268.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
16.[单选题]描述定量资料集中趋势的指标有( )
A.均数、几何均数、变异系数
B.均数、几何均数、四分位数间距
C.均数、变异系数、几何均数
D.均数、四分位数间距、变异系数
E.均数、几何均数、中位数
正确答案:————
17.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="140" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/5c9b80dd-2c7d-45c2-ab7d-20de8d4d7b6a/20085814172110.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
18.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="62" width="470" alt="" src="http://file.open.com.cn/ItemDB/25389/4095714e-1162-4b2a-ae8c-d36f37977f81/20085814455423.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
19.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="72" width="474" alt="" src="http://file.open.com.cn/ItemDB/25389/4adc8844-4d8f-4211-b224-587d56c441c4/20085814218189.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
20.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="132" width="471" alt="" src="http://file.open.com.cn/ItemDB/25389/9c2de441-0cbf-466b-a29d-757983edfa6e/200858142741749.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
21.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="211" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/fcc47659-f38b-4d00-8b58-83117b6f5590/200858142024516.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
22.[单选题]下列关于医学参考值范围的说法中正确的是( )
A.医学参考值范围是根据大部分“健康人”的某项指标制定的
B.医学参考值范围的制定方法不受分布资料类型的限制
C.在制定医学参考值范围时,最好用95%范围,因为这个范围最能说明医学问题
D.在制定医学参考值范围时,最好用95%范围,因为这样比较好计算
E.以上说法均不正确
正确答案:————
23.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="61" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/32949b5e-ece5-4b92-89b8-9d4f66659e80/20085814111298.JPG" /></span>
A.A
B.B
C.C
D.D
E.E 奥鹏作业答案
奥鹏四川大学作业
正确答案:————
24.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="158" width="477" alt="" src="http://file.open.com.cn/ItemDB/25389/1a05f615-abc3-4f2b-afe6-1cc4eaff5834/200858144822179.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
25.[单选题]两样本的秩和检验与t检验相比()
A.秩和检验比t检验好
B.检验效能相同
C. t检验比秩和检验好
D.应根据资料决定优劣
E.以上均不对
正确答案:————
26.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="95" width="478" alt="" src="http://file.open.com.cn/ItemDB/25389/4c6d8e08-4ec9-4744-8288-88cac19dd860/20085814559411.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
27.[单选题]关于频数表的说法正确的是( )
A.都分为10个组段
B.每一个组段必须组距相等
C.从频数表中可以初步看出资料的频数分布类型
D.不是连续型的资料没有办法编制频数表
E.频数表中的每一个组段不一定是半开半闭的区间,可以任意指定
正确答案:————
28.[单选题]下列关于确定正常人肺活量参考值范围说法正确的是( )
A.只能为单侧,并且只有上限
B.只能为单侧,并且只有下限
C.只能为双侧,这样才能反映全面
D.单双侧都可以
E.以上说法均不确切
正确答案:————
29.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="158" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/d853b5ed-cbe1-48d0-a128-f522562043c7/200858141852997.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
30.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="185" width="483" alt="" src="http://file.open.com.cn/ItemDB/25389/f28fc60d-9c84-4072-8c4f-045ec5294849/200858145419753.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
31.[单选题]用下列哪两个指标可以较全面地描述正态分布特征( )
A.均数和中位数
B.中位数和方差
C.均数和四分位数间距
D.均数和标准差
E.几何均数和标准差
正确答案:————
32.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="54" width="471" alt="" src="http://file.open.com.cn/ItemDB/25389/d255a99d-5005-4bd7-bf4e-b259d35b09bd/200858142713763.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
33.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="193" width="468" alt="" src="http://file.open.com.cn/ItemDB/25389/47acc412-10e2-4c2f-9ba6-0d3c3ca89a86/20085814202359.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
34.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="108" width="466" alt="" src="http://file.open.com.cn/ItemDB/25389/a9530161-b796-4584-a8de-331365df7426/200858143218476.JPG" /></span>
A.A
B.B
C.C
D.D
正确答案:————
35.[单选题]经调查得知甲、乙两地的糖尿病患病率为3.35%,按年龄标准化后,甲地糖尿病患病率为3.54%,乙地为3.02%,据此可以认为()
A.甲地年轻人患糖尿病较乙地多
B.乙地年龄别人口构成较甲地年轻
C.甲地年龄别人口构成较乙地年轻
D.甲地糖尿病的诊断较乙地准确
E.乙地糖尿病的诊断较甲地准确
正确答案:————
36.[单选题]多组均数的两两比较中,若用t检验不用q检验,则()
A.会将有差别的总体判断为无差别的概率增大
B.会将无差别的总体判断为有差别的概率增大
C. 结果更加合理
D.结果会一致
E.以上都不对
正确答案:————
37.[单选题]小概率事件在统计学上的含义是( )
A.指的是发生概率P≤0.5的随机事件
B.指一次实验或者观察中绝对不发生的事件
C.在一次实验或者观察中发生的可能性很小的事件,一般指P≤0.05
D.以上说法均不正确
E.A和C正确
正确答案:————
38.[单选题]关于偏态分布资料说法不正确的是(A,中)
A.正偏态资料的频数分布集中位置偏向数值大的一侧
B.负偏态资料的频数分布集中位置偏向数值大的一侧
C.偏态分布资料频数分布左右不对称
D.不宜用均数描述其集中趋势
E.不宜用变异系数来描述其离散程度
正确答案:————
39.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="228" width="478" alt="" src="http://file.open.com.cn/ItemDB/25389/c7629f81-b745-42f0-ae2a-34d558a3cfe7/200858145534927.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
40.[单选题]<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">题面如图所示:</span>
<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="113" width="471" alt="" src="http://file.open.com.cn/ItemDB/25389/dff6ddb8-af59-4346-a7f6-34309b1ff8d0/200858142812172.JPG" /></span>
A.A
B.B
C.C
D.D
E.E
正确答案:————
奥鹏19春答案
奥鹏四川大学作业
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