"班级"	"不及格科目数"	"学生人数"
"1班"	1	10
"2班"	3	4
"3班"	2	7
"4班"	3	7
"1班"	2	4
"2班"	4	8
"4班"	5	6
"2班"	1	7
"4班"	1	10
"1班"	5	3
"2班"	5	10
"3班"	5	7
"1班"	3	6