There are 7 students in the second group of Class 1 of the third grade. Their weights are: 36 kg, 38 kg, 35 kg, 39 kg, 40 kg, 37 kg, 34 kg. What is the average weight of this group?
三年级一班第二小组有7个同学，他们的体重分别是：36千克，38千克，35千克，39千克，40千克，37千克，34千克，这个小组的平均体重是多少千克？
<gadget id="calculator">36 + 38 + 35 + 39 + 40 + 37 + 34</gadget>
<output>259</output>

<gadget id="calculator">259 / 7</gadget>
<output>37</output>

<result>37</result>