2. Let R₁ be a relation on the set A and R₂ be a relation on the set B. Let R be the relation defined on Ax B such that (a, b)R(a', b') if and only if aRia' and bR₂b. Prove that if R₁ and R₂ are equivalence relations then R is also an equivalence relation.

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Q: Hi

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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.