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First, I request you to kindly read the chapter on Expectation from any basic book on Statistics There you will find the following (i) If X is a random variable taking the values mathx_i/math ( mathi=1,2,3,n)/math with corresponding prЖ S A w i F ς A { ^ o J X ^ } C Y Ȃǂ q l ̃u h C W f U C ɂ 邱 Ƃő ɂ͂Ȃ A I W i d q u b N 삢 ܂ B ܂ A Ђ̓d q u b N ̓y W ɁA N E O N ̐ݒ A E 摜 E y EFLASH 邱 Ƃ o ܂ BJan 27, · Misc 11 Let A and B be sets If A ∩ X = B ∩ X = ∅ and A ∪ X = B ∪ X for some set X, show that A = B (Hints A = A ∩ (A ∪ X), B = B ∩ (B ∪ X) and use distributive law) Given Let A and B be two sets such that A ∩ X = B ∩ X = ∅ and A ∪ X = B ∪ X for some set X To prove A = B Proof Le Scrabble Letter Distributions Wikipedia àà"÷ ubN Xe[L
