"班级"	"不及格科目数"	"学生人数"
"1班"	1	2
"2班"	3	8
"4班"	2	1
"1班"	5	3
"3班"	1	10
"4班"	1	7
"2班"	1	9
"3班"	4	10
"3班"	2	7
"2班"	4	2
"4班"	5	5