其中 Φ(x)是标准正态分布 CDF。
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"But the Democrats stayed seated almost the entire night, and you could tell it started to get under Trump's skin," she continued, showing footage of Trump being outwardly angry at seated members of Congress. "Mr President, I will have you know that the Democrats are not standing because they are outraged by your tyranny and lawless behavior, and also they are asleep right now. Shhhhh!"