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