786, 427, 659, 352 What is the average of this set of data
786，427，659，352这组数据的平均数是多少
<gadget id="calculator">786 + 427 + 659 + 352</gadget>
<output>2_224</output>

<gadget id="calculator">2_224 / 4</gadget>
<output>556</output>

<result>556</result>