For a lognormal distribution, the: A.mean equals the median. B.probability of a negative outcome is zero. C.probability of a positive outcome 50%. 单项选择题 根据下表所示的数据解答问题: 投资组合的预期回报率和标准差 投资组合ABC E(Rp)16%7%15% ...
e, The human population assigned positive subjective value to info. A psychometric curve measured the subjective value of information based on the choice of Info versus Noinfo offers (y axis) as a function of the difference in their expected reward (x axis) computed using all n = 565 ...
Recently, the relationship between Lp(a) levels and other lipoproteins at high and normal levels of serum TGs has been investigated. At high TG levels, Lp(a) is very strongly correlated primarily with HDL₂-C/HDL₃-C and TG-related variables, providing evidence of shared metabolic ...
A forest plot of the analyses in prespecified key subgroups in the intention-to-treat population. Data are presented as unstratified hazard ratios and 95% CI. The dashed line indicates a hazard ratio of 1.00. ECOG PS, Eastern Cooperative Oncology Group performance status; GEJ, gastroesophageal jun...
moved too far from its original habitat, and Yunnan has entered the rainy season making it difficult to cross rivers, it is extremely unlikely that the herd will return to its original habitat at any time soon, said Zhang Li, a field wildlife biologist and professor at Beijing Normal ...
Besides, patients with severe liver dysfunction (alanine transaminase > 3 times upper normal limit), severe renal dysfunction (plasma creatinine > 132 μmol/L), familial hypercholesterolemia, acute coronary syndrome, thyroid dysfunction, heart failure (left ventricle ejection fraction < 45%), ...
Microbiome-metabolome studies of the human gut have been gaining popularity in recent years, mostly due to accumulating evidence of the interplay between gut microbes, metabolites, and host health. Statistical and machine learning-based methods have been
In the regression modelling, the median method was used to classify the health self-ratings into two categories: 1 = poor (≤ 85) and 0 = good (> 85). The chronic disease status was divided into two categories: 1 = with chronic disease and 0 = no chronic ...
Data that did not have a normal distribution were expressed as medians (interquartile range). Mann–Whitney U test was used for comparison of variables that did not have a normal distribution. The data for categorical variables were analyzed by the χ2 test. Correlation between variables was ...
(2) In cases where continuous variables did not exhibit normal distribution, the Mann–Whitney U-test was employed, and median and interquartile range (IQR) values were reported. (3) Categorical variables were presented as percentages and assessed using the Chi-square test. Subsequent analyses ...