what type of data does a survey rely on how many data points for cross country quintile level studies how do they use pooled ols regression which is an example of a pooled analysis which type of data is used in the study of child mortality? what type of data is used for a pooled ols how is a pooled ols calculated what is the difference between a pooled ols and a linear regression what is an example of a pooled ols what is pooled ols what is the difference between pooled ols and sur how to use the simplict unrelated regression what ols do i use to calculate regression what is pooled ols analysis what does sur mean in statistics what is considered a pooled ols what is pooled ols used for? what is the difference between a pooled ols and a fibonacci how do ols data work why do researchers use sur for regression