[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftUfbCO9D1UzSnErpwL79ImztDsGt_JblGXYa_kuKjEQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":26,"type":60},[],"2023-06-14 08:23:22",63428457,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},20,"ae37231bb472296fd45cb53ceb1e249a","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8f6d1861c2d7225ca42808692d75026e.jpg","python数据分析","work_26601978","第四、五章Numpy综合大作业","在NumPy中,可以使用数组对象____执行一些科学计算",[17,28,37,46,55,61,66,69,74,79],{"answer":18,"createTime":5,"id":19,"options":20,"question":25,"source":26,"type":27},[],63428451,[21,22,23,24],"rand","randint","randn","seed","能够产生正态分布的样本值的函数是( )","v1",0,{"answer":29,"createTime":5,"id":30,"options":31,"question":36,"source":26,"type":27},[],63428452,[32,33,34,35],"array","ones_like","eye","reshape","不是NumPy数组创建的函数是( )",{"answer":38,"createTime":5,"id":39,"options":40,"question":45,"source":26,"type":27},[],63428453,[41,42,43,44],"A.arr = np.array([1, 2, 3])","B.arr = np.array([[1, 2, 3], [4, 5, 6]])","C.arr = np.array([[1, 2], [3, 4]])","D.np.ones((3, 3))","下面代码中,创建的是一个3行3列数组的是( )",{"answer":47,"createTime":5,"id":48,"options":49,"question":54,"source":26,"type":27},[],63428454,[50,51,52,53],"[14]","[25]","[14, 25]","[20, 25]","请阅读下面一段程序:arr_2d = np.array([[11, 20, 13],[14, 25, 16],[27, 18, 9]])print(arr_2d[1, :1])执行上述程序后,最终输出的结果为( )",{"answer":56,"createTime":5,"id":57,"options":58,"question":59,"source":26,"type":60},[],63428455,[],"分割数组的函数有____、____、vsplit",2,{"answer":62,"createTime":5,"id":63,"options":64,"question":65,"source":26,"type":60},[],63428456,[],"求数组的标准差函数是 ____,方差函数是____",{"answer":67,"createTime":5,"id":6,"options":68,"question":15,"source":26,"type":60},[],[],{"answer":70,"createTime":5,"id":71,"options":72,"question":73,"source":26,"type":60},[],63428458,[],"如果ndarray.ndim执行的结果为2,则表示创建的是____维数组",{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":26,"type":60},[],63428459,[],"NumPy的数据类型是由一个类型名和元素____的数字组成",{"answer":80,"createTime":5,"id":81,"options":82,"question":83,"source":26,"type":60},[],63428460,[],"程序执行结果是 .import numpy as npa = np.arange____.reshape(2,6)c = a.ravel____c[0]=100print(a)"]