增加：在缺词处加一个漏词符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1). 每处错误及其修改均仅限一词；

2). 只允许修改10处，多者（从第11处起）不计分。

    Postman Sam got present and money from the people for whom he had worked when he retired in last week. They loved him for his wonderfully work. Sam retired after 40 years of send letters in the place of South Manchester. He get a lot of presents and flowers from his workmates too, and he got an farewell party by the Women's Institute of the town. His wife Jill said,＂We'd like thank all the people who came and gave presents. I thought my husband did that he could do. But today she understand how great my husband is but what an important job he had.＂

某班阅读兴趣小组10名同学的年龄情况如下表：

则这10名同学年龄的平均数和中位数分别是____ ．