How is expected value calculated?
A、Σpx
B、pΣx
C、eΣpx
D、xΣp
A、Σpx
B、pΣx
C、eΣpx
D、xΣp
【参考答案及解析】
An expected value is the sum of the different possible outcomes (x) multiplied by their associated probability of occurrence (p).
An expected value is the sum of the different possible outcomes (x) multiplied by their associated probability of occurrence (p).