结果一 题目 What is the meaning of the standard deviation when it is negative是什么意思 顺便用英语做一下吧 答案 标准差为负值时是什么意思 相关推荐 1 What is the meaning of the standard deviation when it is negative是什么意思 顺便用英语做一下吧 ...
A list of numbers has a mean of a standard deviation of 2.5.If x is a number in the list that is 2 standard deviations above the mean,what is the value of 这是新GRE官方指南上149页的一道题啊,不好意思,开头是...has a means of 8 and a standard deviation... 扫码下载作业帮搜索答疑一...
原题是:“A list of numbers has a mean of 8 and a standard deviation of 2.5.If x is a number in the list that is 2 standard deviations above the mean,what is the value of ”能说一下具体怎么写,我感觉没看懂这道题...是一道GRE数学题... 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更...
Standard deviation tells you if the estimate is accurate C. Standard deviation tells you how unsure the estimate is D. Standard deviation tells you if the E. stimate includes a pad 相关知识点: 试题来源: 解析 C 标准差和风险有何关系? A. 没有关系 B. 标准差告诉你估算是否准确 C. 标准差...
Based on the information above, what is the estimated standard deviation for security X?A. 5.6%.B. 0.3%.C. 10.1%.D. 7.8%. 正确答案:A 分享到: 答案解析: Variance = 0.3(0.01 – 0.083)2 + 0.6(0.10 – 0.083)2 + 0.1(0.20 – 0.083)2 = 0.00160 + 0.00017 + 0.00137 = 0.00314Standard...
A sample of 50 items has a variance of 16. What is the standard deviation? A. 2 B. 4 C. 8 D. 16 相关知识点: 试题来源: 解析 B。本题考查方差和标准差的关系。标准差是方差的平方根,方差为 16,标准差为 4。A 选项 2 错误;C 选项 8 错误;D 选项 16 错误。
Standard deviation is the spread of a group of numbers from the mean. The variance measures the average degree to which each point differs from the mean. While standard deviation is the square root of the variance, variance is the average of the squared difference of each data point from th...
I am very sad.Actually I also thought oneself very innocent, why can arrive this situation, once that was friends with, but beca[translate] aWhat is the economic meaning of standard deviation? Try to explain statistical process control? 标准差的经济意思是什么?尝试解释统计过程控制?[translate]...
A. the spread of the data around the mean B. the total number of data points C. the highest value in the data set D. the lowest value in the data set 相关知识点: 试题来源: 解析 A。“standard deviation”是标准差的意思,衡量数据围绕均值的分散程度。B 选项是数据点的总数;C 选项是数据...
结果一 题目 What is the difference between variance and standard deviation? 大神们用英语回答下吧 答案 方差和标准偏差的区别是什么 相关推荐 1 What is the difference between variance and standard deviation? 大神们用英语回答下吧 反馈 收藏