Use a 5-point system to evaluate the students' homework (no one gets 0 points), and then check the quality of the homework of 16 students in the class to evaluate the quality of the homework of the whole class. It is known from the sample data that its mode is 4. So, how many people get at least 4 points
用5分制评价学生的作业(没有人得0分)，然后在班上抽查16名学生的作业质量来估价全班的作业质量．从抽查的数据中已知其众数是4．那么，得4分的至少有多少人
<result>4</result>