By analyzing call log, we can answer questions like: How long is my average call duration?

分析通话记录可以答复下面的地几个题目：我的电话均匀延续时间是多少？

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Participants underestimated the number of calls they had made by an average of about 20%, and overestimated call duration by 40%.

参与者把自己的电话使用频率平均低估了20%，将通话时长平均高估了40%。

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Participants underestimated the number of calls they had made by an average of about 20%, and overestimated call duration by 40%.

参与者把自己的电话使用频率平均低估了20%，将通话时长平均高估了40%。

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