电大统计学原理形成性考核册答案2

经典word整理文档，仅参考，双击此处可删除页眉页脚。本资料属于网络整理，如有侵权，请联系删除，谢谢！统计学原理形考作业一：(第一～三章)一、判断题二、单项选择题1、C2、B、B4、D、D6、D、A、C9、B三、多项选择题1、AD、BCE、ACE4、BCE、BCE、ACD四、简答题12341/14=五、计算题359733％％36％％％％％％8％％％％％％％％％3％1％％％％733％463％％％％％％统计学原理形考作业二：（第四章）一、判断题2/14二、单项选择题1、A、C3、D4、B、C6、D7、B、B、D10、C、D12、D三、多项选择题1、BE、ADE、ABC、DE、ADE6、ADE、ABCDE8、BDE四、简答题23/14/6、xxnxfmxmx1-8550168183五、计算题424803507019775155408016107.6%74484/144248019775801670271113.6%36000175008350618507896xf1500x37.5(件/人)40f平均销售价格xx250.2350.5450.3ff36(元)xf68.25(件/人)mmx元/)4x5.34x1.325(元/)fxf15182539353145122870x＝28.7乙18393112100ffxx2f9.127＝乙5/14V＝V＝0.267乙甲xx36VV甲乙统计学原理形考作业三：(第五～七章)一、判断题二、单项选择题1、A、C3、C4、C5、C6、A、B、D9、A10、B、B、D三、多项选择题1、ABCD、ACD3、BC、ABCE5、BDE6、AD、ABCD8、BCDE、ABD10、ACE四、简答题t6/14nxyxyr22nx2ny2xy＋11rrr（2）判断标准：r为微弱相关，，0.3r为低度相关；，0.5r为显著相关，r为高度相关；r时，r时，ybc12y的yca时ybxy六、计算题3900.975400p30040030020＝15npp)＝np701000.7x150.3fxxf2f0.870.087xnt30.0870.261xx150.3即150.04x7/14pp)0.0458pnt30.04580.1374ppp0.1374即0.56260.8374p％％364％％％％x77()分ffxxf2444040＝)分10.541.6740xnt21.673.34xxx3.3473.66,80.34x2410.542444.3664nt221602.98893.3422ppp)0.9750.0250.011pn200t2ppp0.9750.0220.953,0.997p95.3%p99.7%8/14xy22xy249934345nxyxy6060r0.91663313222nx2y2xnyyacnxyxyb1.822nx2xaybx77.37yc77.371.82xy77.371.82666.45(元)cyacnxyxy103020.9211142b2nx2xay991y26.920.921400012853.08cx67.082x880060y6000y9/14rbx0.8yaybx60000.888001040yc10400.8x1统计学原理形考作业四：(第八～九章)一、判断题二、单项选择题1、A、A、B4、C5、B6、D、A、B9、C10、D、B、C三、多项选择题1、ABE、CDE3、ACD4、AB、BCD6、BC、ABCD8、ABC、ABD10、ABDE四、简答题1、答：（13qp100Kqqp0qp111Kpqp03pq00pq11qqqp11pqq00K00000qpq00pq00qp010/14pqpqqp1K111111ppq11kpqp0pq/11p104axnaaaaaafffn11223n1222n12af11aaaa2122nn1aaa1,2,naaan101aa，a1aa2na000aa,aa,aa,aa102030n0aa,aa,aa,aa102132nn1aaaaan1aaa23naa012n10a0naaan10n1(aa)(aa)(aa)aa1021nn1n0五、计算题128.2%113%113.45%124.3%106.8%116.39%％112.9%27.3%413.6%11/14pq11K96.04%ppq01pq11pq万)01pq01K114.29%qpq00qpqp万)1000qpqpqp111110096.04%114.29%109.76%qp0qp1qp000qpqppq11pq01pq01pq00110019006000万元)pqk11105.74%ppq1938.6911kppq11pq万元)11kppqk2050120.58%170011qppq00pq11pq万元)00120.58%105.74%k114.03%qa1a2a63605548434050aaan23n122250.417(万元)n171112/14aa1aa2aafffnn123222n112a2ffff123n150454560606823122223195157.56423152.75(万元)aa50.4252.75a2万元)122ac分）ba180160200a180(万元)(2分)n3b1b2bn6006005806202