A set of data 2.5, 8, 1.5, b, 6, 4, and the mode of this set of data is 8, then what is the median of this set of data.
一组数据2.5，8，1.5，b，6，4，且这组数据的众数是8，那么这组数据的中位数是多少．
<gadget id="calculator">4 + 6</gadget>
<output>10</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<result>5</result>