expectation
英 [ekspek'te??(?)n]
美[,?ksp?k'te??n]
- n. 期待；预期；指望
英英释意
- 1. belief about (or mental picture of) the future
- 2. wishing with confidence of fulfillment
- 3. the feeling that something is about to happen
- 4. the sum of the values of a random variable divided by the number of values