How do you interpret a standard deviation? Explain how to find a new standard deviation from the mean. Explain how to multiply the standard deviation. Explain how to calculate 3 standard deviations from the mean. Explain what is measured by the standard deviation. ...
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, on the other hand, is a measure that quantifies the amount of variation or dispersion of a set of data points. It is calculated by taking the square root of the average of the squared deviations from the mean, providing a consistent measure of spread around the mean. ...
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...
A. All the data points are the same. B. The mean is zero. C. The data set is very large. D. The data set is randomly distributed. 相关知识点: 试题来源: 解析 A。解析:标准偏差为零意味着数据的离散程度为零,即所有数据点相同。B 选项,均值不一定为零;C 选项,数据量大小与此无关;D ...
If a data set has a large range but a small standard deviation, what can be concluded? A. The data is highly variable. B. The data is evenly distributed. C. The data has outliers. D. The data is relatively consistent E. xcept F. or a few extreme values. ...
explain what“1 standard deviation above the average score"means。能用英语回答就更好了, 相关知识点: 试题来源: 解析 "1 standard deviation above the average score" means that the observation value minus the population mean just equals to 1 standard deviation.The average score is the population ...
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? 答案 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...
Understanding the standard deviation: What makes it larger or smaller? Using cooperative learning methods, this activity helps students develop a better intuitive understanding of what is meant by variability in statistics. Em... Cary Roseth 被引量: 0发表: 0年 What is the relationship between the...
the amount invested in the risk-free asset. The investments plotted include every combination of risk-free and risky assets. These combinations are plotted on a graph where the y-axis is the expected return, and the x-axis is the risk of the asset as measured by the standard deviation. ...