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