(a) If for each k 23. Suppose (An) are events. show (d) Show iff VRHUT n-1 EP(An (A) = 00, n=k i=k (b) What is the relevance to the Borel Zero-One Law? (c) Is it enough to assume P(lim sup An) = 1. 818 n-1 ΣP(A₁lAj) = ∞o? i=1 n=1 P (lim sup An) = 1 84x

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23. Suppose (An) are events.
(a) If for each k
show
(d) Show
iff
n-1
Σ P(An! ΠA) = 00,
n=k
i=k
(b) What is the relevance to the Borel Zero-One Law?
(c) Is it enough to assume
P(lim sup An) = 1.
8x
8
n=1
n-
P(A₂A) = ∞o?
i=1
P (lim sup An) = 1
81x
8
Σ P(AAn) = 00
n=1
for all events A such that P(A) > 0.
Transcribed Image Text:23. Suppose (An) are events. (a) If for each k show (d) Show iff n-1 Σ P(An! ΠA) = 00, n=k i=k (b) What is the relevance to the Borel Zero-One Law? (c) Is it enough to assume P(lim sup An) = 1. 8x 8 n=1 n- P(A₂A) = ∞o? i=1 P (lim sup An) = 1 81x 8 Σ P(AAn) = 00 n=1 for all events A such that P(A) > 0.
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