百度试题 题目What is the coefficient of variation for a distribution with a mean of 10 and a variance of 4? A. 20%. B. 40%. C. 25%. 相关知识点: 试题来源: 解析 A 略 反馈 收藏
In the physical sciences, a partition coefficient (P) or distribution coefficient (D) isthe ratio of concentrations of a compound in a mixture of two immiscible solvents at equilibrium. ... This ratio is therefore a comparison of the solubilities of the solute in these two liquids. What does...
正确答案:A 分享到: 答案解析: Coefficient of variation, CV = standard deviation / mean. The standard deviation is the square root of the variance, or 4½ = 2. So, CV = 2 / 10 = 20%. 统计:共计66人答过,平均正确率62.12% 问题:进入高顿部落发帖帮助相似...
welfare capitalism welfare lo triangle welfare not capitalis welfare payable expen welfare n welfareanalysis welfareexpenditures welgemethod welican machinery col well -- well about me well alive well bore coefficient well bounded reservoi well cargo pump well control simulato well cuts well done beef...
Often the binomial distribution’s cumulative density function is used, which gives the probability of having x or less successes in n trials. Calculating this probability is simple for a small n, but becomes tedious as n gets large, because of the binomial coefficient. The binomial coefficient ...
long-term U.S. Treasury debt interest rates are less than short-term interest rates. When the yield curve is inverted, yields decrease the farther out the maturity date is. Sometimes referred to as a negative yield curve, the inverted curve has proven to be a reliable indicator of a ...
Poverty is a state or condition in which a person or community lacks the financial resources and other essentials beyond income for a minimum standard of living.
On the basis of this model, inference is required in the form of a confidence intervalorposteriordistribution for a particular variety contrast\alpha_{1}-\alpha_{2}. 练习2(随机区组模型)。考虑具有b块和k个变量的随机区组设计,在统计模型中,所有观测值都是独立的,且具有单位方差的正态分布。块i中...
A correlation coefficient is the statistical measure that will tell us whether there is a relationship between our two variables of interest, and if there is one, how strong that relationship is. The value of the correlation coefficient, ρ (rho), ranges from -1 to +1. The closer to -1...
Explore what is probability distribution. Learn the definition of probability distribution, formula, types along with examples