作业帮The distribution of the numbers of hours that students at a
来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/05/20 02:58:00
The distribution of the numbers of hours that students at a certain college studied for final exams has a mean of 12 hours and a standard deviation of 3 hours.Which of the following numbers of hours are within 2 standard deviations of the mean of the distribution?Indicate all such numbers
A.2 B.5 C10 D.14 E.16
A.2 B.5 C10 D.14 E.16
答案选CDE
再问： 麻烦给下解答思路呗
再答： 大致意思是学生为学习，学习时间平均为12小时，一个标准区间是3小时。问以下哪些时间处于平均时间加减2个标准区间内
再答： 这个就是高斯分布的概念题啦，就是看在12-2×3=6和12+2×3=18，看看哪些选项在6到18之间啦
再问： 麻烦给下解答思路呗
再答： 大致意思是学生为学习，学习时间平均为12小时，一个标准区间是3小时。问以下哪些时间处于平均时间加减2个标准区间内
再答： 这个就是高斯分布的概念题啦，就是看在12-2×3=6和12+2×3=18，看看哪些选项在6到18之间啦
The distribution of the numbers of hours that students at a
Stranger:When studying the distribution of prime numbers Rie
the distribution of practice
the three properties of a normal distribution
英语翻译If we have a look at the spatial distribution of the ave
a numbers of 与 the numbers of 有什么区别?
关于the numbers of
a number of,the number of,numbers of,the numbers of ,的区别
The system of numbers that nearly everyone uses cousists of
英语翻译the members of a distribution channel are linked closely
Explain the summation stability of normal distribution.
Some people believe that some numbers show the ______side of