期望值; 预期值 newexpected value的英文翻译是什么意思,词典释义与在线翻译:
英英释义
Noun:the sum of the values of a random variable divided by the number of values
expected value的用法和样例:
例句The expected value itself very rarely can help us.
期望值本身很难帮助我们。The term expectation value is often used instead of average value.
期望值这个名称常用来代替平均值。