The standard error of estimate is based on:? squared deviations from the regression line.|negative values.|squared units of the independent variable.|the regression mean square error.

数字视频运动估算准则实现优化的梯度搜索方法使用准则是（）。 A: 平均绝对值差值mean absolute difference (MAD) B: 平均平方误差mean squared error (MSE) C: 最小二乘法least-squares D: 位移帧差

如果预测值和真实值的残差是：(1.0, 2.2, -0.5, 3.1, 0.0), 计算均方差（Mean Squared Error）， 结果是（）。 A: A: 1.16 B: B: 3.04 C: C: 3.14 D: D: 3.925

The standard error of the mean is never larger than the standard deviation of the population.

The difference between the sample mean and the population mean is called the: A: population deviation. B: population standard deviation. C: standard error of the mean. D: sampling error.

If a paired comparison test of mean differences supports rejecting the null hypothesis, then the: A: independence of the samples is statistically significant. B: standard error of the mean differences is low relative to the sample mean difference. C: difference in means is not statistically significant.

From a population of 500 elements, a sample of 225 elements is selected. It is known that the variance of the population is 900. The standard error of the mean is approximately

下列是全局变量的是（）。 A: @error B: @@error C: !error D: error（）

The following is not the geometric error of machining process system (). A: machining principle error B: geometric error of machine tool C: adjustment error D: tool manufacturing error

下列不属于VBA提供的On Error语句形式为()。 A: On Error Goto标号 B: On Error Then 标号 C: On Error Resume Next D: On Error Goto 0