Solution for QID #17221: 1) Explain the concept behind propensity score stratificatio | StudyHelpMe

1) Explain the concept behind propensity score stratification (i.e., in simple terms how does it aim to remove bias from condition assignment)? 2) What is one potential benefit of using weighting or stratification over the matching of PS? 3) Why we do square root of variance to get standard deviation?  4) I am stuck on this homework questionIf a basketball player has a 55% chance of scoring a basket.