Question
Let E1, E2, E3 and E4 be arbitrary events. Write the following events in set notations:
i) not more than one of E1, E2, E3, E4.
ii) one and only one of E1, E2, E3, E4.
iii) E1 and at least one of E2, E3, E4.
iv) none of E2, E3 and E4 using E1.
b) Let the probability density function of r.v. X be
and if and
, find Cov(u,v). Also check the independence of u and v.
Answer :
Word Count : 165
Let (E_1,E_2,E_3,E_4) be arbitrary events. i) Not more than one of (E_1,E_2,E_3,E_4): [ (E_1^c\cap E_2^c\cap E_3^c\cap E_4^c);\cup; (E_1\cap E_2^c\cap E_3^c\cap E_4^c);\cup; (E_1^c\cap E_2\cap E_3^c\cap E_4^c);\cup; (E_1^c\cap E_2^c\cap E_3\cap E_4^c);\cup; (E_1^c\cap E_2^c\cap E_3^c\cap E_4). ] ii) One and only one of (E_1,E_2,E_3,E_4): __________ _________ ___ _________ ___ _____ _____ ___ ____ _____ _______ ______.
_________ ________ ________ ______ _______ _________ ____ ______.
_____ _______ _______ ___ ____ __________ ___ ____ _______ ____ ______ _____.
_______ ____ _______ _________ __________ __________ _________ _____ _______ ___ _________.
_______ ______ _______ _______ __________ ______ _________ _____ _____ __________.
___ _________ ________ ___ ____ ____.
________ _________ _________ __________ __________ ________ ___ ____ ____ ____.
_____ _________ _________ ___ ___ ______ __________ ____ _____ ________.
________ ________ _______ ______ _______ ________ _____ _______ __________ ____.
___ ____ ___ ________ _______ ________ ______ ____.
____ ______ _______ ____ ________ _________ ___ _______ ___.
_____ ___ ____ _____ ___ ___ ________.
______ ______ ________ ______ __________ _________ ______ _______ _________.
___ ________.
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Let (E_1,E_2,E_3,E_4) be arbitrary events. i) Not more than one of (E_1,E_2,E_3,E_4): [ (E_1^c\cap E_2^c\cap E_3^c\cap E_4^c);\cup; (E_1\cap E_2^c\cap E_3^c\cap E_4^c);\cup; (E_1^c\cap E_2\cap E_3^c\cap E_4^c);\cup; (E_1^c\cap E_2^c\cap E_3\cap E_4^c);\cup; (E_1^c\cap E_2^c\cap E_3^c\cap E_4). ] ii) One and only one of (E_1,E_2,E_3,E_4): __________ _________ ___ _________ ___ _____ _____ ___ ____ _____ _______ ______.
_________ ________ ________ ______ _______ _________ ____ ______.
_____ _______ _______ ___ ____ __________ ___ ____ _______ ____ ______ _____.
_______ ____ _______ _________ __________ __________ _________ _____ _______ ___ _________.
_______ ______ _______ _______ __________ ______ _________ _____ _____ __________.
___ _________ ________ ___ ____ ____.
________ _________ _________ __________ __________ ________ ___ ____ ____ ____.
_____ _________ _________ ___ ___ ______ __________ ____ _____ ________.
________ ________ _______ ______ _______ ________ _____ _______ __________ ____.
___ ____ ___ ________ _______ ________ ______ ____.
____ ______ _______ ____ ________ _________ ___ _______ ___.
_____ ___ ____ _____ ___ ___ ________.
______ ______ ________ ______ __________ _________ ______ _______ _________.
___ ________.
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