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小数法则是一种心理偏差,是指人们将小样本中某事件的概率分布看成是总体分布,抓住问题的某个特征直接推断结果,而不考虑这种特征出现的真实概率及与特征有关的其他原因。 根据上述定义,下列哪一项反映了小数法则?

单选题
2023-02-02 22:05
A、在掷硬币的游戏中,即使连续10次出现正面,第11次出现正面的概率仍然还有50%
B、一位投资经理在过去两年表现好于其他人,并不能说明这位经理水平要高于其他人
C、在北京街头对100人进行调查都认为北京的房价很高,因此全北京市的人都认为北京的房价很高
D、某一给定时间在一家大医院内诞生的婴儿有60%是男孩,则一家小医院内情况必定相同
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正确答案
C

试题解析
 解题的关键在于“将小样本中的概率分布看成总体分布”,C项中仅根据100人中的调查情况就得出全北京市的情况,属于小数法则的一种反映,所以选择C选项。

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小数法则是一种心理偏差,是指人们将小样本中某事件的概率分布看成是总体分布,抓住问题的某个特征直接推断结果,而不考虑这种特征出现的真实概率及与特征有关的其他原因。 根据上述定义,下列哪一项反映了小数法则?
小数法则是一种心理偏差,是指人们将小样本中某事件的概率分布看成是总体分布,抓住问题的某个特征直接推断结果,而不考虑这种特征出现的真实概率及与特征有关的其他原因。根据上述定义,下列哪一项反映了小数法则?
逻辑运算符(AND、NOT、OR)的运算顺序是AND→OR→NOT。
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