例句與造句

1. Exchangeable sequences have some basic covariance and correlation properties which mean that they are generally positively correlated.
2. The results for the covariance and correlation follow from the definition that non-overlapping increments are independent, of which only the property that they are uncorrelated is used.
3. If the sample size " n " is small and the number of considered variables " p " is large, the above empirical estimators of covariance and correlation are very unstable.
4. Although the values of the theoretical covariances and correlations are linked in the above way, the probability distributions of sample estimates of these quantities are not linked in any simple way and they generally need to be treated separately.
5. The degree to which a good is a substitute or a complement depends on its relationship to other goods, rather than an intrinsic characteristic, and can be measured as cross elasticity of demand by employing statistical techniques such as covariance and correlation.
6. It's difficult to find covariance and correlation in a sentence. 用covariance and correlation造句挺難的