A proof question involving union and complements of events

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SUMMARY

The discussion centers on proving the probability of the union of independent events, specifically that for independent events X1, X2, ..., Xk, the equation P(X1 U X2 U ... U Xk) = 1 - [1 - P(X1)][1 - P(X2)]...[1 - P(Xk)] holds true. Key concepts include the use of complements and DeMorgan's Law, which states that the complement of a union is the intersection of the complements. The proof requires linking the probabilities of individual events and their complements effectively.

PREREQUISITES
  • Understanding of probability theory, specifically independent events
  • Familiarity with the concept of complements in probability
  • Knowledge of DeMorgan's Law in set theory
  • Basic skills in mathematical proofs and logical reasoning
NEXT STEPS
  • Study the properties of independent events in probability theory
  • Learn about the application of DeMorgan's Law in probability proofs
  • Explore examples of calculating probabilities using complements
  • Investigate advanced topics in probability, such as conditional probability and Bayes' theorem
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Students of probability theory, mathematicians, and anyone interested in understanding the principles of independent events and their implications in probability calculations.

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Homework Statement


If X1, X2, X3, ... Xk are independent events, prove that

P(X1 U X2 U X3 U ... U Xk) = 1 - [1 - P(X1)][1-P(X2)]...[1-P(Xk)]


Homework Equations


The Attempt at a Solution


Well I have tried a few methods, but I know it's got something to do with

P(X1) = cc(P(X1)) (complment complement)
P(X1) = 1 - c(P(X1))
P(X1) = 1 - (1-P(X1))

I know that much, but I can't link it in with unions of independent events?? I
 
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DeMorgan's Law:

(A_1 \cup \dots \cup A_k)^c = A_1^c \cap \dots \cap A_k^c
 

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