| 单词 | expected value |
| 释义 | expected value noun[U] ukusECONOMICS,FINANCE theprobablevalueof something,calculatedas thetotalof allpossiblevaluesmultipliedby thedegreeofpossibilitythat each willhappen: In alottery,peoplearewillingtopayfarmore than theexpectedvalueoftheirwinningsfor theremotechancethat they mighthitthejackpot. Examplesofexpected valueexpected value Therefore, theexpectedvalueof following a certain religion could be negative. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.With the expansion in hand, find theexpectedvalue. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The reason is that lottery tickets cost more than the expected gain, so one maximizingexpectedvalueshould not buy lottery tickets. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Following is an analysis of theexpectedvalueof one round. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Theexpectedvalueis the mean of the distribution of expected outcomes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The current market prices are interpreted as predictions of the probability of the event or theexpectedvalueof the parameter. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Many other distributions for which theexpectedvaluedoes exist also do not have a finite variance because the integral in the variance definition diverges. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The interviewer's objective is to maximize theexpectedvalueof the selected applicant. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Theexpectedvalue, being the mean of the entire population, is typically unobservable, and hence the statistical error can not be observed either. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The average payoff of the gamble, known as itsexpectedvalue, is $50. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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