created sense approved 期望值 · qīwàngzhí · expectations
期望值
qīwàngzhí
expectations
the level of expectation or anticipation held towards someone or something
父母对孩子的期望值往往很高。
noun
created sense approved 期望值 · qīwàngzhí · expected value
期望值
qīwàngzhí
expected value
the predicted average value of a random variable in statistics and probability
这个随机变量的期望值等于零。
noun