The school's Red Scarf TV station has to choose a male host and a female host from among 3 boys and 4 girls. Wang Dong is one of the boys. What is the probability of being selected?
学校红领巾电视台要在3名男生和4名女生中，挑选男、女主持人各一名，王东是男生中的一个，被选中的可能性是多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>