In this article, I will introduce why jackknife can be used to do debiasing and variance estimation and why it works well. Specifically, I will focus on its statistical properties e.g. consistency and biasedness.
Given a set of 12 balls , one of which is defective (it weighs either less or more) . You are allow to weigh 3 times to find the defective and also tell which weighs less or more.
