A. variance B. spread C. mean D. median 相关知识点: 试题来源: 解析 B。本题主要考查对标准差概念的理解。标准差是衡量数据分散程度的指标,也就是spread。选项 A 方差与标准差不同;选项 C 均值不是标准差的含义;选项 D 中位数也与标准差无关。反馈 收藏 ...
Standard deviation measures _. A. the average value of a data set B. the spread or dispersion of a data set C. the middle value of a data set D. the number of values in a data set 相关知识点: 试题来源: 解析 B。解析:标准差衡量数据集的分散程度或离散程度。选项 A,是均值的作用。
The higher the standard deviation, the farther the items of data tend to lie from the mean. Figure 4-1 provides an example courtesy of Wikipedia. Figure 4-1. Simple bell curve example In performance testing terms, a high standard deviation can indicate an erratic end-user experience. For ...
The standard deviation measures the dispersion of a set of data. A. variation B. deviation C. dispersion D. standard deviation 相关知识点: 试题来源: 解析 D。“standard deviation”是标准偏差,专门用于衡量数据的离散程度;“variation”变化;“deviation”偏差;“dispersion”分散。反馈 收藏 ...
If the standard deviation is large, it means the data is ___. A. consistent B. homogeneous C. diverse D. similar 相关知识点: 试题来源: 解析 C。如果标准差大,意味着数据是多样的,diverse。选项 A 一致的不符合大标准差的情况;选项 B 同质的也不对;选项 D 相似的也不是大标准差的表现。反馈 ...
SDMStandard Deviation of the Mean SDMService Desk Manager(software) SDMSumber Daya Manusia(Indonesian: human resources) SDMSales Development Manager(various companies) SDMSchool of Dental Medicine(various organizations) SDMStandard Days Method(family planning) ...
2. standard deviations are smaller, indicated the data more gathers; The standard deviation is bigger, indicated the data is more separate 相关内容 aSKIN FOOD QUINOA RICH BODY WASH 皮肤食物奎奴亚藜富有的身体洗涤[translate] a每天与朋友多多交流。有助于自己的语言风格特色的提高,如果你不去与别人沟通...
A low standard deviation (spread) means low volatility, while a high standard deviation (spread) means higher volatility The degree to which returns vary or change over time Standard Deviation and Variance in Investing These two concepts are of paramount importance for both traders and investors....
A. central tendency B. variability C. symmetry D. skewness 相关知识点: 试题来源: 解析 B。A 选项 central tendency 中心趋势。B 选项 variability 变异性,标准差是衡量数据离散程度,即变异性的指标,符合题意。C 选项 symmetry 对称性。D 选项 skewness 偏度。反馈 收藏 ...
The standard deviation is the square root of this mean.If n is the number of items of data, x is the value of each item, and x is the mean value, the standard deviation(S) may be given by the formula S=n where E indicates that the squared differences between the value of each ...