汉英词典
Chinese-English Dictionary
MEANING OF 期望值
期望值
(math) expected value
〈名〉对人或事物所抱希望的程度。
wàng zhí
EXAMPLE SENTENCES

随机变量的加权平均值是期望值

The weighted mean of the random variable is the expected value.

最后你得调整你的期望值

In the end you have to readjust your expectations.

相反,我所努力做的是设立期望值

Instead, what I am striving to do is set expectations.

女性往往受家庭职责及低期望值约束。

Women are too often constrained by family commitments and by low expectations.

一般来说,他人的高期望值对学生的成长至关重要。

Generally, high expectations from others are essential to students' development.

一拨可用的健康劳力人数达不到军方官员们的期望值

The available pool of healthy manpower was not as large as military officials had expected.

3方差的专业定义是随机变量的二次中心矩,与期望值之差的平方的加权平均值。

The technical definition of variance is the random variable's second central moment, the weighted average of the square of the differences from the expected value.

《南方都市报》评论员吴楚吟(音译)表示,辞职的原因是由于毕业生对工作的期望值和现实工作情况之间存在着巨大的差距。

What leads to resignations is the gap between grads' expectations and the real work situation, according to Wu Chuyin, a commentator at Southern Metropolis Daily.

火力强度模型则通过以特定兵力密度分布在本区一分钟内抗击饱和进袭的敌空袭兵器的数学期望值建立。

The fire intensity model is built by the mathematic expectation that the forces that are arrayed in given distribution density attack the saturation air attack forces in a minute.