Correlation vs Regression: Both correlation and regression are two powerful tools of statistics and data analysis used to understand the relationships between variables. However, they serve distinct ...

A quantitative study is made of the bias in the usual estimate of the linear correlation coefficient and of the relative efficiency of the estimated regression, when a certain type of selective ...

1. Presenting and summarizing data -- 2. Probability -- 3. Random variables and their distributions -- 4. Population and sample -- 5. Estimation of parameters -- 6. Hypotheses testing -- 7. Simple ...

Regression imputation is commonly used to compensate for item nonresponse when auxiliary data are available. It is common practice to compute survey estimators by treating imputed values as observed ...