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