3. Consider the following discrete probability space. Let = {aaa, bbb, ccc, abc, acb, bac, bca, cab, cba}, i.e., consists of 3-letter 'words' aaa, bbb, ccc, and all six possible 3-letter 'words' that have a single letter a, a single letter b, and a single letter c. The probability measure P is given by 1 P(w) = for each weΩ. 9 Consider the following events: A: the first letter of a 'word' is a, B: the second letter of a 'word' is a, C: the third letter of a 'word' is a. answer! Decide whether the statements bellow are true or false. Justify your (i) The events A, B, C are pairwise independent. (ii) The events A, B, C are independent. Total marks 7 [7 Marks]

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 31E
Question
3.
Consider the following discrete probability space. Let
= {aaa, bbb, ccc, abc, acb, bac, bca, cab, cba},
i.e., consists of 3-letter 'words' aaa, bbb, ccc, and all six possible 3-letter
'words' that have a single letter a, a single letter b, and a single letter c. The
probability measure P is given by
1
P(w)
=
for each weΩ.
9
Consider the following events:
A: the first letter of a 'word' is a,
B: the second letter of a 'word' is a,
C: the third letter of a 'word' is a.
answer!
Decide whether the statements bellow are true or false. Justify your
(i)
The events A, B, C are pairwise independent.
(ii)
The events A, B, C are independent.
Total marks 7
[7 Marks]
Transcribed Image Text:3. Consider the following discrete probability space. Let = {aaa, bbb, ccc, abc, acb, bac, bca, cab, cba}, i.e., consists of 3-letter 'words' aaa, bbb, ccc, and all six possible 3-letter 'words' that have a single letter a, a single letter b, and a single letter c. The probability measure P is given by 1 P(w) = for each weΩ. 9 Consider the following events: A: the first letter of a 'word' is a, B: the second letter of a 'word' is a, C: the third letter of a 'word' is a. answer! Decide whether the statements bellow are true or false. Justify your (i) The events A, B, C are pairwise independent. (ii) The events A, B, C are independent. Total marks 7 [7 Marks]
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