The scores (unit: points) of a group of 6 students in a math test are as follows: 22, 97, 100, 70, 97, 85 What is the average of this group of data.
一次数学考试某组6名同学成绩(单位：分)如下：22，97，100，70，97，85这组数据的平均数是多少．
<gadget id="calculator">22 + 97 + 70 + 97 + 85 + 100</gadget>
<output>471</output>

<gadget id="calculator">471 / 6</gadget>
<output>157/2 = around 78.5</output>

<result>157/2 = around 78.5</result>