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
In Project Management, Standard Deviation is used to gauge project performance and manage risks. For instance, it can be used in critical path analysis and earned value. It can evaluate variances, monitor progress and quantify the risks related to a critical path or earned value not being achiev...
"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 mean. Assume a observation selected from a population follows normal distribution (u,s^2) is x,we can calculate its ...
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...
What is a standard deviation?Question:What is a standard deviation?Statistics:Numerous statistical techniques measure aspects of a population of values, such as a population of humans' intelligence scores, using tools like variables, deviation, and variance, which actually relate to each other.Answer...
If this curve were flatter and more spread out, the standard deviation would have to be larger in order to account for those 68 percent or so of the people. So that's why the standard deviation can tell you how spread out the examples in a set are from the mean. ...
分数或比数中大概有多少部分是在平均值mean的标差值standarddeviation的范围内结果一 题目 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(ST...
Note that the standard deviation is the square root of the variance, so the standard deviation is about 3.03 for a sample data set. The standard deviation for a population data set would be 2.87. The sample formula is used when the data set represents a randomsamplefrom the entire population...
The assets held could be in the form of stocks, commodities, bonds, or, cash equivalents. An investor will perform a portfolio analysis to determine the level of is and expected return as well.Answer and Explanation: Standard deviation is a measure of the risk of an asset or a portfolio....
Understanding standard deviation helps businesses make informed decisions by providing insights into the variability and consistency of data. It is a fundamental statistical tool that aids in risk assessment, quality control, and performance evaluation. ...