下面是六（2）班学生期末考试数学成绩。+?(g5f'p7n5f9o(r5J*R
98 99 85 88 100 92 96 88 97 99+?(g5f'p7n5f9o(r5J*R
100 79 98 93 91 87 63 75 94 100+?(g5f'p7n5f9o(r5J*R
95 86 53 99 68 78 86 95 98 100+?(g5f'p7n5f9o(r5J*R
84 92 88 76 93 99 87 98 100 90+?(g5f'p7n5f9o(r5J*R
89 91 78 95 98 97 92 96 58 97+?(g5f'p7n5f9o(r5J*R
分数+?(g5f'p7n5f9o(r5J*R
100+?(g5f'p7n5f9o(r5J*R
90～99+?(g5f'p7n5f9o(r5J*R
80～89+?(g5f'p7n5f9o(r5J*R
70～79+?(g5f'p7n5f9o(r5J*R
60～69+?(g5f'p7n5f9o(r5J*R
60以下+?(g5f'p7n5f9o(r5J*R
人数+?(g5f'p7n5f9o(r5J*R
7I-r:Z0{/^'~'P2c+?(g5f'p7n5f9o(r5J*R
,{6v5n*o0`'N)I0y:J'D7l*V+?(g5f'p7n5f9o(r5J*R
1{8l;D+?(g5f'p7n5f9o(r5J*R
4o;o'Z9f+?(g5f'p7n5f9o(r5J*R
5](o,]8y.?+?(g5f'p7n5f9o(r5J*R
（1）总分是5Z2V5r/a5s，考试人数是)g9m8o7|(`'F7O，平均分数是8s)g2S/Q-`5x6F0z*\1a7m。+?(g5f'p7n5f9o(r5J*R
（2）)t3N1h分数段的人数最多，占总人数的/b5I)c4w2R;z+u*O%。+?(g5f'p7n5f9o(r5J*R
（3）90分以上的同学共有(x*D:l+[3O6|'P,l1@*P2W人，占总人数的)C6I.{1D%。+?(g5f'p7n5f9o(r5J*R