下列说法错误的是()。
A. 两个随机信号的互相关系数的绝对值是小于等于1的。
B. 两个随机信号的互相关函数等于0,说明它们彼此正交。
C. 两个随机信号的互协方差等于0,说明它们彼此无关。
D. 无关和独立是等价的
How was the bank’s ethical policy developed?
How does the bank check that its policy is in touch with customers’ views?
What example does Andy give of a business the bank will not invest in?