At the New Year's Day Cultural Performance, Zhang Hua will perform a solo. Mom prepared two red and yellow long skirts and three black, white and gray scarves for her solo performance. Now let Zhang Hua choose. What is the possibility of her choosing a red dress with a white scarf?
在元旦文艺汇演上，张华要表演独唱．妈妈为她这次独唱准备了红、黄两件长裙和黑、白、灰3条围巾，现在让张华来选，她选穿红裙配白围巾的可能性是多少？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<result>1/6 = around 0.166667</result>