2021年广东省深圳市高级中学2019届高三适应性考试(6月)数学(理)试题含答案.pdf
绝密启用前试卷类型:A 2019 届高三年级适应性测试理科数学本试卷共6 页,23 小题,满分150 分,考试用时 120 分钟。注意事项:1答卷前,考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、试室号、座位号填写在答题卡上。用 2B铅笔将试卷类型和考生号填涂在答题卡相应位置上。2选择题每小题选出答案后,用 2B铅笔把答题卡上对应的题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再填涂其他答案。答案不能答在试卷上。3非选择题必须用黑色字迹的钢笔或签字笔作答,答案必须写在答题卡各题目指定区域内相应位置上;如需改动,先划掉原来的答案,然后再写上新的答案,不准使用铅笔和涂改液。不按以上要求作答的答案无效。4作答选做题时,请先用2B铅笔填涂选做题的题组号的信息点,再作答。漏涂、错涂、多涂的,答案无效。5考生必须保持答题卡的整洁。第卷(选择题共 60 分)一、选择题:本大题共12 小题,每小题5 分,满分60 分在每小题给出的四个选项中,只有一项符合要求1已知集合|(1)(3)Ax yxx,2|log1Bxx,则AB(A)|31xx(B)|01xx(C)|32xx(D)|2x x2已知3i1iz(其中i为虚数单位),则z的虚部为(A)i(B)1(C)1(D)23在等比数列na中,12a,前n项和为nS,若数列1na也是等比数列,则nS等于(A)122n (B)3n (C)2n (D)31n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 19 页4若4cos5,是第三象限的角,则1tan21tan2(A)12(B)12 (C)2 (D)25勒洛三角形是具有类似圆的“定宽性”的面积最小的曲线,它由德国机械工程专家,机构运动学家勒洛首先发现,其作法是:以等边三角形每个顶点为圆心,以边长为半径,在另两个顶点间作一段弧,三段弧围成的曲边三角形就是勒洛三角形现在勒洛三角形中随机取一点,则此点取自正三角形内的概率为(A)2 3 32(3)(B)32(3)(C)32(3)(D)2 3 32(3)6已知51(1)(2)axxx的展开式中各项系数的和为2,则该展开式中常数项为(A)80 (B)40 (C)40 (D)807现行普通高中学生在高一升高二时面临着选文理科的问题,学校抽取了部分男、女学生意愿的一份样本,制作出如下两个等高堆积条形图:根据这两幅图中的信息,下列统计结论是不正确的是.(A)样本中的女生数量多于男生数量(B)样本中有理科意愿的学生数量多于有文科意愿的学生数量(C)样本中的男生偏爱理科(D)样本中的女生偏爱文科精品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 19 页文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X4文档编码:CV2I2E8P5W4 HH10X4K10B1Q10 ZO7A3V2G7X48抛物线xy42的焦点为F,准线为l,经过F且斜率为3的直线与抛物线在x轴上方的部分相交于点A,lAK,垂足为K,则AKF的面积是(A)4 (B)33 (C)34 (D)8 9在平行四边形ABCD中,113,2,32ABADAPAB AQAD若12,CP CQ则ADC5()6A3()4B2()3C2D10在平面直角坐标系xOy中,已知点,A F分别为椭圆2222:1(0)xyCabab的右顶点和右焦点,过坐标原点O的直线交椭圆C于,P Q两点,线段AP的中点为M,若,Q FM三点共线,则椭圆C的离心率为(A)13 (B)23 (C)83 (D)32或8311 设函数()yf x的图像与2xay的图像关于直线yx对称,且(2)(4)1ff,则a(A)1(B)1(C)2(D)412 设O是正四面体PABC底面ABC的中心,过O的动平面与PC交于,S与,PA PB的延长线分别交于,Q R则111|PQPRPS(A)有最大值而无最小值 (B)有最小值而无最大值 (C)既有最大值又有最小值,且两者不相等 (D)是一个与平面QRS无关的常数精品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 19 页文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 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ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1第 II卷(非选择题共 90 分)本卷包括必考题和选考题两部分第13-21 题为必考题,每个试题考生都必须作答,第22-23题为选考题,考生根据要求作答二、填空题:本大题共4 小题,每小题 5 分,共 20 分13在数列na中,1111,(*)2019(1)nnaaanNn n,则2019a的值为 _14.已 知 函 数sin2cos()()()0)fxxx的 图 象 关 于 直 线x对 称,则cos2_15在三棱锥PABC中,平面PAB平面ABC,ABC是边长为的等边三角形,PAB是以AB为斜边的等腰直角三角形,则该三棱锥外接球的表面积为_16已知函数22,0,()e,0,xxxf xx若方程2()f xa恰有两个不同的实数根12,xx,则12xx 的最大值是 _三、解答题:解答应写出文字说明,证明过程或演算步骤17(本小题满分12 分)工程队将从A到D修建一条隧道,测量员测得图中的一些数据(,A B C D在同一水平面内),求,A D之间的距离.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 19 页文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A118(本小题满分12 分)已知四棱锥PABCD,底面ABCD为菱形,PDPB,H为PC上的点,过AH的平面分别交PB,PD于点M,N,且BD平面AMHN(1)证明:MNPC;(2)当H为PC的中点,3PAPCAB,PA与平面ABCD所成的角为60,求AD与平面AMHN所成角的正弦值HPABCDMN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 19 页文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A119.(本小题满分12 分)在平面直角坐标系xOy中,离心率为63的椭圆2222:1(0)xyCabab过点6(1,)3M(1)求椭圆C的标准方程;(2)若直线0 xym上存在点G,且过点G的椭圆C的两条切线相互垂直,求实数m的取值范围精品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 19 页文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A120.(本小题满分12 分)某景区的各景点从2009 年取消门票实行免费开放后,旅游的人数不断地增加,不仅带动了该市淡季的旅游,而且优化了旅游产业的结构,促进了该市旅游向“观光、休闲、会展”三轮驱动的理想结构快速转变下表是从2009 年至 2018 年,该景点的旅游人数y(万人)与年份x的数据:第x年1 2 3 4 5 6 7 8 9 10 旅游人数y(万人)300 283 321 345 372 435 486 527 622 800 该景点为了预测2021 年的旅游人数,建立了y与x的两个回归模型:模型:由最小二乘法公式求得y与x的线性回归方程50.8169.7yx;模型:由散点图的样本点分布,可以认为样本点集中 在曲线bxyae的附近(1)根据表中数据,求模型的回归方程bxyae(a精确到个位,b精确到 0 01)(2)根据下列表中的数据,比较两种模型的相关指数2R,并选择拟合精度更高、更可靠的模型,预测 2021 年该景区的旅游人数(单位:万人,精确到个位)回归方程50.8169.7yxbxyae1021()iiiyy30407 14607 参考公式、参考数据及说明:对于一组数据1122,nnv wv wvw,其回归直线wv的斜率和截距的最小二乘法估计分别为121()(),()niiiniiww vvwvvv刻画回归效果的相关指数22121()1()niiiniiyyRyy精品w o r d 学习资料 可编辑资料-精心整理-欢迎下载-第 7 页,共 19 页文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 ZV3R10A4Y5A1文档编码:CW5A8C6M10P8 HR6Y8R7F10H1 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