问题
问答题
IQ＝15Z+100，Z为标准分数，IQ为离差智商，推导出离差智商的平均数和标准差。
答案
参考答案：
解析：平均数：100；标准差：15。
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IQ＝15Z+100，Z为标准分数，IQ为离差智商，推导出离差智商的平均数和标准差。
参考答案：
解析：平均数：100；标准差：15。
There are ____ people(人) in my family. ____ are my father, my mother, my brother and I. My father is ____.He’s a teacher. My mother is 39. She is a teacher,__ __. They work hard. ____ a student. I’m in . There ____ sixteen boys and fourteen ____ in my class. There are eighteen desks ____ thirty chairs in the classroom. All classmates are very happy.
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