求翻译：（2）掌握求随机过程的一维、二维分布函数族的方法，掌握求随机过程的均值函数、方差函数、自相关函数、自协方差函数的方法。是什么意思？

(2) master seeking one-dimensional random process, the method of two-dimensional distribution function family master seeking the mean function of the random process, the variance function, the autocorrelation function autocovariance function method.

(2) master and random process of one-dimensional, 2d distribution function, the method of disposal for random processes are value function, variance function, the function, the function of the covariance method.

(2) grasping asks the stochastic process unidimensional, the two-dimensional distribution function race's method, grasping to ask the stochastic process the average value function, the variance function, the autocorrelation function, the autocovariance function method.

(2) to master the process random distribution functions of one-dimensional, two-dimensional methods, mean variance functions, to master the process random function, autocorrelation function, the covariance function of the method.

正在翻译，请等待...