The rope skipping results of the first group of class 31 are as follows: Xiaohong scored 78 points, Xiao Ming scored 84 points, Xiao Lin scored 92 points, and Li Ying scored 86 points. What is the average score of the first group in skipping rope?
三1班第一小组跳绳成绩如下：小红78分，小明84分，小林92分，李英86分．第一小组跳绳的平均成绩为多少分．
<gadget id="calculator">78 + 84 + 92 + 86</gadget>
<output>340</output>

<gadget id="calculator">340 / 4</gadget>
<output>85</output>

<result>85</result>