(a) A stick of length 1 meter is broken into two pieces at a randomly chosen point on the stick. What is the probability that no piece is longer than 3? b) Let X be a discrete random variable with finite range. Prove that if Var[X] = 0, then X must be constant.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.