2021年概率论与数理统计(A卷).pdf

概率论与数理统计期末考试试卷（A）第 1 页 共 8 页得分一、单项选择题（每题 1 分，本大题共 12 分）一、单项选择题（每题 1 分，本题共 15 分）1、A、B、C 为三事件，那么事件“至少一个不发生”可以表示为【】。（1）CBA（2）)CB(A-S（3）CBA（4）CBA2、已知 P(A)=0.40,P(B)=0.15,且 A 与 B 互斥，则 P(AB)=【】。（1）0.4000（2）0.5500（3）0（4）0.1500 3、设)16,4(UX，)85(1XPp，2p)106(XP，那么【】。（1）21pp（2）21pp（3）21pp（4）二者的关系不确定4、已知 P(AB)=0.24,P(B)=0.40,那么 P(A/B)=【】。（1）0.60（2）0.24（3）0.40（4）0.096 5、随机变量 X 的概率函数为 P(X=k)=15ka(k=2,4,6),则 a=【】。（1）5/4（2）-15（3）12（4）15 6、如果随机变量Xb(4,1/4),那么 P(X=0)=【】。（1）0（2）81/256（3）1/256（4）1/4 7、设NX(10,64),axXP)10(，那么)10(xXP【】。（1）=0（2）=1/2（3）a（4）不能计算8、随机变量 X 服从0.01的指数分布，E（0.4X+60）=【】。（1）60.04（2）40（3）60（4）100 9、如果3Y-2XDYX,20D(Y),8)X(D相互独立，与且【】。（1）12（2）-12（3）196（4）212 10、假设随机变量 X 的分布密度为)(xf，以下属于基本性质的是【】。（1）)()0(xfxf（2）)(0)(xxf（3）1)(dxxf（4）,21xx则)()(21xfxf11、以下分布中方差数值等于数学期望平方的是【】。（1）二项分布（2）指数分布云南财经大学2011 至 2012 学年 上学期概率论与数理统计课程期末考试试卷A（试）学号：姓名：班级：专业：院（系）：答案不得超过装订线精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 1 页，共 8 页概率论与数理统计期末考试试卷（A）第 2 页 共 8 页（3）正态分布（4）泊松分布布12、t 分布的极限分布是【】。（1）)1,0(N（2）)(2n（3）),(2N（4）),1(nF13、如果样本观测值为60，70，80，那么总体均值的无偏估计是【】。（1）70（2）10（3）60（4）80 14、以下关于矩估计法的叙述中正确的是【】。（1）充分利用总体分布（2）理论依据是kPkA（3）利用样本分布信息（4）一定是有偏估计15、总体均值置信度为 99%的置信区间为（1?，2?），置信度的意义为【】（1）落入（1?，2?）的概率为 0.99（2）（1?，2?）不包含的概率为 0.99（3）（1?，2?）包含的概率为 0.99（4）落出（1?，2?）的概率为 0.99 二、多项选择题（从每题后所备的 5 个选项中，选择至少2个正确的并将代码填题后的括号内，每题1分，本题共 5 分）。16、如果随机事件、A B 互斥，且30.0)B(P,40.0)A(P，那么【】。（1）0.40)B-A(P（2）0.70)BA(P（3）0B)/P(A（4）0)AB(P（5）1)B/A(P17、设随机变量 Xe（10）,那么【】。（1）10.0)X(E（2）10)X(E（3）2e1)0.2X(P（4）0.01)X(D（5）)100X(P)100X|220X(P18、设总体是样本。，未知，已知，），（nXXXNX,2122下列不是统计量的有【】。（1）nXnii/1（2）221/)(XXnii（3）/)(iX（4）nXnii/)(21（5）niinXX12/)(19、以下关于最大似然估计方法的说法中正确有【】。精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 2 页，共 8 页文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4概率论与数理统计期末考试试卷（A）第 3 页 共 8 页（1）理论依据是kPkA（2）充分利用总体分布信息（3）无需总体分布（4）使用样本分布信息（5）保证样本值出现概率最大20、设nXXX,21是总体),(2X的样本，那么【】。（1）),(21nnNXnii（2）)1,0(NXi（3）2SX与独立（4）niinX122)(（5）)1,0(/)(NXi三、判断题（在每题前括号内：对的写T，错的写F；每题 1 分，本题共 15分）【】21、如果,0)(BAP那么事件 A 与 B 互斥。【】22、如果),()()(BPAPBAP那么随机事件 A 与事件 B 互斥。【】23、CBACBA。【】24、若 A、B 相互对立，且 P(A)=0.30，P(B)=0.70,那么 P(A-B)=0.70。【】25、设随机变量的分布函数和密度函数分别为)(xF、)(xf，则)()(xfxF。【】26、设随机变量)8.4(PX,那么 X 取到 5 的概率最大。【】27、设随机变量 X 取值于区间)5,1(，当实变量5x，则分布函数0)(xF。【】28、泊松分布描述的是稀有事件流在单位时间、单位空间发生的次数。【】29、如果 DX、DY 都存在，且 X 与 Y 独立，那么DYDXYXD)(。【】30、222),8(,)12(YXYX那么（20），如果 X 与 Y 独立。【】31、t分布也称“学生氏分布”，由英国统计学家W.S.Gosset首先提出。【】32、用同一样本对同一参数估计其置信区间，则置信度与误差成正比。【】33、统计量的分布称为“抽样分布”。【】34、Bernoulli 大数定理是用频率估计概率的理论保障。【】35、置信度 95%，表示用多个样本值估计所得区间中包含参数的频率约为0.95。四、计算题（每题 8分，本大题共 40 分）：36、50名学生出生于平年的一年之内。假定每一个人出生于年内任何一天等可能性。求：（1）有 2 人出生日相同的概率。（2）有人出生于 10 月份的概率。37、盒子内有 8 个网球，其中 3 个是旧的（但能用）。第一次比赛从盒子中任取2 个（用精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 3 页，共 8 页文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4概率论与数理统计期末考试试卷（A）第 4 页 共 8 页后放回）。第二次比赛时再从中任取2个。要求：（1）计算第二次取到的2 个球都是新球的概率。（2）若第二次取到的2 个都是新球，计算第一次取到的都是旧球的概率。38、设随机变量 X),(pnb,且已知6,10 DXEX,要求：（1）计算)2(XP。（2）确定 X 的最可能取值。39、假设随机变量 X 的概率密度函数为：其他,020,)(2xAxxf。其中0A（常数）。要求：（1）确定常数值 A。（2）计算 EX。40、假设商店的周营业额),(2NX（单位：万元）。从历史数据中随机抽取5 周的营业额结果为：12，11，12，11，14。要求：（1）估计周平均营业额（）的置信度为 95%的置信区间。（2）估 计 标准 差的 95%置 信区 间。（已知,7764.2)4(025.0t1813.2)4(05.0t。,143.11)4(2025.0484.0)4(2975.0）。五、应用题（每题 10分，本大题共 10 分）41、某 市 每 天 发 生 的 火 灾 次 数,0)(PX未 知)，即 概 率 函 数 为：,2,1,0,!)(),(xexxXPxfx。从历史数据中随机抽查10 天的火灾次数，结果：1，2，5，0，1，0，1，2，3，1。要求：（1）求的最大似然估计。（2）估计每天发生4 次火灾的概率。（2019.06.1e）六、综合题（每题 15分，本大题共15分）：42、设财险客户在一年内发生责任事故的概率为0.0006，保险公司吸纳了 20 万名此类客户。每位收费 200元，责任事故的赔付额为25 万。求：（1）利润超过 100 万元的概率。（2）若利润超过 100万的概率定为 0.75，其他条件不变，赔付标准应多少？（3）若利润超过 100 万元的概率定为0.90，其他条件不变，保费应为多少？（业务费用暂不考虑）（9980.0)88.2(7486.0)67.0(，7517.0)0.68(，8997.0)28.1(，)90147.0)29.1(精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 4 页，共 8 页文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4概率论与数理统计期末考试卷（A 卷）评分标准1 云 南 财 经 大 学 期 末 考 试试 题 答 案 及 评 分 标 准学年学期：20112012（上）专业：会计、金融、项目管理及理财等班级：2010511A 班等课程：概率论与数理统计教学大纲：概率论与数理统计教学大纲（2011年版）使用教材：概率论与数理统计教材作者：吴赣昌出 版 社：中国人民大学出版社精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 5 页，共 8 页文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4概率论与数理统计期末考试卷（A 卷）评分标准4 云南财经大学院国际工商管理学院概率论与数理统计试题（A 卷）参考答案及评分标准一、单项选择题（每题 1 分，本题共 15 分）：1、（4）2、（3）3、（2）4、（1）5、（1）6、（2）7、（3）8、（4）9、（4）10、（3）11、（2）12、（1）13、（1）14、（2）15、（3）二、多项选择题（每题 1 分，本题共 5 分）16、（1）（2）（3）（4）（5）17、（1）（3）（4）18、（3）（4）19、（2）（4）（5）20、（1）（3）（5）三、判断题（每题 1分，本题 15 分）：21、F22、F23、F 24、F 25、F 26、F 27、F 28、T 29、T 30、T 31、T 32、T 33、T 34、T 35、T 四、计算题（每题 8分，共 40 分）：36、解：（1）设 A=有 2 人出生日相同 50481365250365364)(CCnmAP（4 分）（2）设 B有人出生在 10 月 50)365334(1)(BP（4 分）37、解：以 A0，A1，A2分别表示第一次取到的旧球数为0，1，2 个，显然 A0，A1，A2是完备事件组。记 B=第二次取到的 2 个都是新球 （1）由全概率公式有39275)/()()(282328250328242815132825282320CCCCCCCCCCCCCCABPAPAPiii（4 分）（2）由贝叶斯公式有：51392/75/)/()()/()()/(2825282320000CCCCABPAPABPAPBAPiii（4 分）38、解：610npqnp40.025pn（3 分）（1）2322256.04.0)2(CXP（3 分）（2）4.104.0)125()1(pn，所以 X 最可能取值为104.10)1(pn（2分）精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 6 页，共 8 页文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4文档编码:CG2H8I8R2Z10 HP10C6S10N7C6 ZH8X5Y6P3T4概率论与数理统计期末考试卷（A 卷）评分标准4 39、解：（1）8311)(202AdxAxdxxf（4 分）（2）2022383)(dxxxdxxxfEX（4 分）40、解：5.1,122sx（1）均值的置信度为 1置信区间为：nsntxnsntx)1(,)1(22（2 分）均值的置信