if you buy a 100-square-meter house, the area that the developer finally delivered is 5 square meters less, then the correct one in the error description of the actual area is ( ). A: the absolute error is 0.05 B: The relative error is 0.05 C: the absolute error is -5 square meters D: The relative error is -0.05

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

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

Measurable weights of NaCl are 1.52g, and their real weights are 1.54g. Could you find the absolute error of measurable results? () A: 0.02 B: 0.2 C: -0.02 D: -0.2

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.

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

Measurable<br/>weights of NaCl are 1.52 g, and their real weights are 1.54 g. Could<br/>you find the absolute error of measurable results?<br/>( ) A: 0.02 g B: -0.02 g C: 0.2 g D: -0.2 g