问一道题：NO.PZ2018091901000047

NO.PZ2018091901000047问题如下 Neshie Wakuluk is investment strategist who velops capitmarket expectations for investment firm thinvests across asset classes anglobmarkets. Wakuluk starteher career when the globmarkets were experiencing significant volatility anpoor returns; a result, she is now careful to base her conclusions on objective evinananalyticproceres to mitigate any potentibiases.Wakuluk most likely seeks to mitigate whiof the following biases in veloping capitmarket forecasts? A.Availability B.Time perioC.Survivorship A is correct. Wakuluk starteer career when the globmarkets were experiencing signifcant volatility anoor returns. She is careful to base her conclusions on objective evinannalyticproceres to mitigate potentibiases, whisuggests she isseeking to mitigate availability bias. Availability biis the tenntooverly influenceevents thhave left a strong impression anor forwhiit is easy to recall example.解析题中提到Wakuluk的职业生涯开始时，全球市场正经历严重的波动和糟糕的回报。她谨慎地将自己的结论建立在客观证据和分析程序的基础上，以减少潜在的偏见，这表明她正在寻求减少availability bias。availability bias是指容易被留下深刻印象和/或容易回忆起一个例子的事件过度影响的倾向。所以A正确，B，C在这里都是打酱油的。 我咋没看到这个bias呢？还有请问一下，如果答案有representative bias能不能选呢？

NO.PZ2018091901000047 Time perioSurvivorship A is correct. Wakuluk starteer career when the globmarkets were experiencing signifcant volatility anoor returns. She is careful to base her conclusions on objective evinannalyticproceres to mitigate potentibiases, whisuggests she isseeking to mitigate availability bias. Availability biis the tenntooverly influenceevents thhave left a strong impression anor forwhiit is easy to recall example. 解析题中提到Wakuluk的职业生涯开始时，全球市场正经历严重的波动和糟糕的回报。她谨慎地将自己的结论建立在客观证据和分析程序的基础上，以减少潜在的偏见，这表明她正在寻求减少availability bias。 availability bias是指容易被留下深刻印象和/或容易回忆起一个例子的事件过度影响的倾向。 所以A正确，B，C在这里都是打酱油的。 看了老师的，感觉很牵强，我理解的是他虽然身处不好的经济环境下，但是仍然能审慎分析，明显是消除了time periobias啊

NO.PZ2018091901000047 同问，为什么不选择B和C，因为经历了严重的波动和糟糕的回报的时期，一方面建模和分析尽量避免time perio响，这段时期的数据和其他时期数据会有重大偏离；第二方面，经历了严重波动，会存在survivorship bias，许多公司或者组合会中止；最后选择才是A吧。

Time perioSurvivorship A is correct. Wakuluk starteer career when the globmarkets were experiencing signifcant volatility anoor returns. She is careful to base her conclusions on objective evinannalyticproceres to mitigate potentibiases, whisuggests she isseeking to mitigate availability bias. Availability biis the tenntooverly influenceevents thhave left a strong impression anor forwhiit is easy to recall example. 解析题中提到Wakuluk的职业生涯开始时，全球市场正经历严重的波动和糟糕的回报。她谨慎地将自己的结论建立在客观证据和分析程序的基础上，以减少潜在的偏见，这表明她正在寻求减少availability bias。 availability bias是指容易被留下深刻印象和/或容易回忆起一个例子的事件过度影响的倾向。 所以A正确，B，C在这里都是打酱油的。 为什么是选A  而不是选C呢？

Time perioSurvivorship A is correct. Wakuluk starteer career when the globmarkets were experiencing signifcant volatility anoor returns. She is careful to base her conclusions on objective evinannalyticproceres to mitigate potentibiases, whisuggests she isseeking to mitigate availability bias. Availability biis the tenntooverly influenceevents thhave left a strong impression anor forwhiit is easy to recall example. 解析题中提到Wakuluk的职业生涯开始时，全球市场正经历严重的波动和糟糕的回报。她谨慎地将自己的结论建立在客观证据和分析程序的基础上，以减少潜在的偏见，这表明她正在寻求减少availability bias。 availability bias是指容易被留下深刻印象和/或容易回忆起一个例子的事件过度影响的倾向。 所以A正确，B，C在这里都是打酱油的。 为什么不是timeperio？专门说了目前是动荡时期，尽量避开这一时期的影响 感觉time prriobi也对啊