"班级"	"不及格科目数"	"学生人数"
"1班"	5	9
"3班"	1	2
"4班"	1	10
"1班"	1	8
"2班"	5	10
"3班"	3	6
"2班"	1	8
"4班"	4	6
"1班"	4	1
"3班"	5	10
"4班"	2	6