Unverified50% confidenceFactExact time
期望价值的计算方式为各种可能结果的收益乘以其发生概率之和
1
Sources
50%
Confidence
Long-term
Relevance
7/13/2026
First Seen
Sources
裁员潮下跳槽值得吗？5万美元加薪的风险与收益全解析
redditr/datascience7/10/2026
Related Claims
UnverifiedThe Sharpe ratio is excess return divided by the standard deviation of returns, measuring the reward obtained per unit of risk taken; a value above 1 is generally considered good performance, while above 2 is considered excellent.67% similarUnverified博彩赔率可直接转换为隐含概率，例如赔率2.5对应40%的夺冠概率66% similarUnverifiedIn logistic regression, a predicted probability greater than 0.5 is classified as a positive example and less than 0.5 as a negative example, but this 0.5 threshold can be adjusted according to business requirements.64% similarUnverifiedForrest & Simmons (2002)研究发现博彩公司发布的赔率经庄家精算调整后，对比赛结果的预测准确率在统计上显著优于随机猜测64% similarUnverified统计功效（Statistical Power）指在真实效应存在时研究能正确检验出显著差异的概率，通常需设定在80%或90%以上64% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/502006API
curl https://kongchang.com/api/v1/knowledge/claims/502006MCP
get_claim(id=502006)