The weights of 8 students in a group are 38 kg, 39 kg, 38.5 kg, 36.5 kg, 36 kg, 37 kg, 35.5 kg, 39.5 kg. What is the average weight of the students in this group in kilograms?
一个小组8位同学的体重分别是38千克、39千克、38.5千克、36.5千克、36千克、37千克、35.5千克、39.5千克．这个小组同学的平均体重是多少千克？
<gadget id="calculator">38 + 39 + 38.5 + 36.5 + 36 + 37 + 35.5 + 39.5</gadget>
<output>300</output>

<gadget id="calculator">300 / 8</gadget>
<output>75/2 = around 37.5</output>

<result>75/2 = around 37.5</result>