下图是某披萨店的数据，若通过函数RSQ()计算季度销售额与区内大学生的R2值，则可以用下列（）公式计算。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/cd05319ec4a84d67bd0777c8e4d95168.png
举一反三
- 下图是某披萨店的数据，若通过函数RSQ()计算季度销售额与区内大学生的R2值，则可以用下列()公式计算
- 根据下图的数据，利用一元线性回归模型y=a+bx预测当区内大学生数为2.1时，季度销售额保留一位小数的预测值为()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/c20cdfc2bc294ec2845a0d57b9038206.png
- 用Euler法求微分方程<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/624c4b8f8dca46c7bef22714e1ed1722.png" />数值解，取步长<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a13d85bddaeb4fcd9917aa25748d2e7c.png" />，则<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/70cf8bfe9dc142c6b500f50abf025d17.png" />的计算值为_______. A: 1.94 B: 0.84 C: 0.94 D: 2
- 设<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/bed4f91f4fec44358e1cad3163fc6b90.png" />是在区间<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a58a11f71a434f2ab38a2f347802f010.png" />上的<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/a392447e03794318affaa2b03bb5967b.png" />的分段线性插值函数，以下条件不是<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/c00fe77a8291453a8cb2577eb68735ad.png" />必须满足的条件是________________. A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/cf6e811a4488413fae8f1839e4d098ea.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/bb93b2d7d02245878ec51e2986c97b5d.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/ec6692c00c2e49b6adbf9b0493638b81.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/214f277da4154f58a43751f80b09d959.png" />
- 下图是某披萨店的数据，若通过内建函数法分别计算一元线性回归模型y=a+bx的参数a和b，可使用下列（ ）组公式计算。 ① =INTERCEPT(C2:C11,B2:B11) ② =INTERCEPT(C2:C11, A2:A11) ③ =SLOPE(C2:C11,A2:A11) ④ =SLOPE(C2:C11,B2:B11)http://image.zhihuishu.com/zhs/onlineexam/ueditor/201808/958529c35a504f1da2454130efbb0c17.png