某学生在整理班级同学的身高数据时,发现将数据按从小到大的顺序排列后,位于正中间的两个数分别是158和160,则这组数据的中位数是:
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点A表示-3,点B与点A的距离是5个单位长度,说明点B可能在-3的左侧或右侧。若在左侧,则为-3 - 5 = -8;若在右侧,则为-3 + 5 = 2。题目中明确指出点B在原点的右侧,即表示正数,因此点B表示的数是2。选项B正确。
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