Assuming a mean of 7.2%, what is the sample standard deviation of the returns for ABC Mutual Fund for the period 1991-2000?A. 7.8%.B. 9.8%.C. 9.1%. 正确答案:C 分享到: 答案解析: Standard deviation = [∑i (xi − X)2 / (n − 1)]1/2 = √(744.10 / 9) = √(82.68) ...
百度试题 题目Assuming a mean of 7.2%, what is the sample standard deviation of the returns for ABC Mutual Fund for the period 1991-2000? A. 7.8%. B. 9.8%. C. 9.1%.相关知识点: 试题来源: 解析 C 略 反馈 收藏
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...
Standard Deviation is a statistical tool that is used widely by statisticians, economists, financial investors, mathematicians, and government officials. It allows these experts to see how variable a collection of data is. Furthermore, SD is calculated as the square root of the variance of the da...
Standard Deviation:The standard deviation is a statistical measure that tells us how dispersed the data in a set are in relation to its mean. There are two formulations for standard deviation, one for a sample and the other for a population. We can calculate the standard deviation using the ...
points) What is the definition of sample standard deviation s ? "'s" is used to measure variatie s,eecieied values. (10 points) Prove that s=n−1∑xi2−n(∑xi)2 Not the question you’re looking for? Post any question and get expert ...
Deviation is a simple concept that lays the foundation for understanding more complex statistical measures like Standard Deviation. While deviation gives an idea of the distance of each data point from the mean, it does not provide a comprehensive picture of the dataset's overall variability. Standa...
这是道数学问题意思是说分数或比数中大概有多少部分是在平均值(MEAN)的标差值(STANDARD DEVIATION)的范围内?因为我以前做的也是英文的中文的翻译可能有点没那么标准.相关推荐 1关于标准偏差的问题(英文)about what proportion of the scores are within two standard deviations of the mean?这句话是什么意思呀?反...
For a sample dataset, divide the sum of squares by n - 1 (where "n" is the sample size), and for a population dataset, divide it by N (the total number of data points in the population). Step 6: Find the Square Root of the Variance Once the variance is calculated, the next ...
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