Draw "Zheng" wording statistics on the mathematics scores of 50 students in a certain class. After proper grouping, the number of people in the score range of 80-90 points is "Zheng Zheng", then the number of people in this class in this score range accounts for the total number of people in the class What is the percentage of
对某班50名同学的一次数学成绩进行画"正"字法统计，适当分组后80一90分这个分数段的人数为"正正"，那么此班在这个分数段的人数占全班人数的百分比是多少
<gadget id="calculator">10 / 50</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>