We investigate the emerging properties of quantum walks with temporal disorder engineered from a binary Markov chain with tailored correlation, C, and disorder strength, r. We show that when the disorder is weak—r≪1—the introduction of negative correlation leads to a counter-intuitive higher ...
A. weak positive correlation B. strong positive correlation C. weak negative correlation D. strong negative correlation 相关知识点: 试题来源: 解析 B。本题考查相关性系数的理解。相关性系数为 0.8,大于 0 且接近 1,表明是强正相关。A 选项弱正相关通常在 0.3 到 0.5 之间;C 选项弱负相关在 -0.3 ...
Correlation between income and expenditure is much stronger in urban than in rural areas, but the between-country gap is larger in the latter case because linear correlation is particularly weak in rural India (0.280). Table 4 displays the mean relative income and consumption for different ...
We detected weak correlations between several tumor markers and PEIs. For example, 88 PEIs were correlated with the cytokeratin-19-fragment CYFRA21-1 (CYFRA 21-1); 83 PEIs were correlated with tumor-supplied group factors; 64 PEIs were correlated with neuron-specific enolase; and 64 PEIs were...
then A) Xit is said to be autocorrelated B) the OLS estimator cannot be computed C) statistical inference cannot proceed in a standard way even if clustered standard errors are used D) this is not of practical importance since these correlations are typically weak in applications Answer: A ...
(Table 2). The sound duration is positively related to an increase in fish size except inS. elongatusandS. spilopleurawhich were characterised by a negative relationship (Table 2,Fig. 3a). It is worth mentioning the weak relationship inS. spilopleuraandS. compressuscould be due to the small ...
value of X increases (decreases), the Y value decreases (increases), the two variables are negative correlation, and the correlation coefficient is between -1.00 and 0.00.The greater the absolute value of the correlation coefficient, the stronger the correlation, the closer the correlation ...
Work by Sutton (1997), applied to the Hotelling's model, explores such an equilibrium notion and weak rationality requirement, based in his case on a single decision rule, which is to seize an opportunity when it presents itself. It would take a further study to understand how the TC ...
Does a Correlation Coefficient of -0.8 Indicate a Strong or Weak Negative Correlation? A correlation coefficient of -0.8 indicates an exceptionally strong negative correlation. The two variables tend to move in opposite directions. The closer the coefficient is to -1.0, the stronger the negative rel...
What Is Considered a Weak Negative Correlation? The strength of a correlation relationship is quantified by its correlation coefficient, the strongest possible being “perfectly” correlated. A perfect negative correlation has a value of -1.0 and indicates that when X increases by z units, Y decreas...