2006年某校学生会为了解在校大学生的消费支出情况，从全校本科学_爱下问搜题

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问题问答题计算题

2006年某校学生会为了解在校大学生的消费支出情况，从全校本科学生中按性别随机各抽取100名，其月消费支出额分组资料如下：

要求：根据表中资料

分别计算男女学生月消费支出分布的偏态系数和峰度系数，判断其分布形态。

答案

参考答案：

三阶中心矩；四阶中心矩

偏度系数：；峰度系数：

根据公式计算得男生月消费支出的偏度为-0.1879，呈轻度左偏分布；峰度为-0.5550，呈轻度低峰分布；

对女生而言，月消费支出偏度为0.1727，呈轻度右偏分布；峰度为-0.5015，呈轻度低峰分布。

完形填空

Night after night, she came to tuck me in (给…掖被子), even long after my childhood years. Following her long-standing custom, she’d        and push my long hair out of the way, then kiss my forehead.
I don’t remember when it first started        me----her hands pushing my hair that way. But it did annoy me,       they felt work-worn and rough against my young skin.        , one night, I shouted at her, “Don’t do that anymore ----your hands are too       !” She didn’t say anything in reply. But never again did my mother close out my day with that        expression of her love.
Time after time, with the passing years, my thoughts        to that night. By then I missed my mother’s         , missed her goodnight kiss on my forehead. Sometimes the incident        very close, sometimes far away. But always it existed in the back of my        .
Well, many years have passed, but mother’s rough hands are still doing things for me and my family. She’s been our doctor,        into a medicine cupboard for the medicine to         us children of our pain. She makes the best food in the world and always keeps our clothes clean.
Now, my own children are grown and gone. Mom no longer has Dad, and on special        , I find myself drawn next door to spend the night with her. So it was late on Thanksgiving Eve, as I slept in the bedroom of my youth, a familiar hand        ran across my face to brush the hair from my forehead. Then a kiss, ever so gently,        my forehead.
In my memory, for the thousandth time, I        the night my young voice        , “Don't’ do that anymore----your hands are too rough!”        Mom’s hand in my hand, I blurted out how sorry I was for that night. I thought she’d remember, as I did. But Mom didn’t know what I was talking about. She had forgotten ---and       ---long ago.
That night, I fell asleep with new appreciation for my gentle mother and her caring hands. And the        that I had carried around for so long was nowhere to be found.

B．unwillingly

C．Controlling

判断题

“仪容仪表”中要求员工发型自然、大方得体。女员工长发应盘起或束起，短发梳理妥贴；不染怪异颜色头发；刘海不过眉；不化浓妆；不留长指甲或涂有色指甲油；不戴夸张的饰品；男员工不留胡须和长发。