Data-1, 0, 3, 4, 6, a, b, the mode is a, the median is b, the mean is a+b, what is the value of the mean.
数据-1，0，3，4，6，a，b的众数是a，中位数是b，平均数是a+b，平均数的值是多少．
<gadget id="calculator">12 / 6</gadget>
<output>2</output>

<result>2</result>