问题
单项选择题
An analyst does research about common probability distributions. Which of the following provides the probability of a range of outcomes()
A. Probability function.
B. Probability density function.
C. Bernoulli function.
答案
参考答案:B
解析:
描述一个区间结果的概率是用概率密度函数来表达的,并用于连续随机变量。概率函数在离散情况下是用于描述某个取值的概率,累计概率函数是描述小于或等于某个数值的概率。