实验中学八年级（1）班50名学生参加期末考试，全班学生的数学成绩统计如表：

请根据表中提供的信息解答下列问题：

（1）该班学生这次考试数学成绩的众数是？

（2）该班学生这次考试数学成绩的中位数是？

（3）该班张华同学在这次考试中的数学成绩是83分，能不能说张华同学的数学成绩处于全班中游偏上水平？试说明理由．

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：在错的词下画一横线，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。

Dear Harry,

    I have good news for you that there will be a international music camp in our city this summer The camp is openly to students from all over the world who is interested in playing musical instruments. I know you are a music lover, so why not to join the camp together with us?

    At the camp, campers are giving classes by experts in the moring and in the afternoon they do a couple of hour of practice. In the evening, there is a music exchange concert that campers can give performances and plays different kinds of music from their own counties.

    I'm sure you will have a lot of funs there. I'm looking forward your reply.

Yours,

Li Hua