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
equation

 

and if equation and equation, find Cov(u,v). Also check the independence of u and v.

09 Jan 2026
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 _________ _______ _____ ________ _______ __________ ____ ____.
__________ _____ ________ ___ ____ _______ ________ __________ _________ ______ ________.
___ ____ ______ _________ ____ ____ ___.
___ ____ __________ ____ __________ ____.
______ ____ _________ __________ ___ _____ _______ ________.
_________ __________ ___ __________ _____ ________ ________ ________ ________.
________ __________ _____ __________ _________ _____ ______ _________.
________ ______ ________ _____ ________ __________ ________ ________ ____ ______ _________ _________.
_____ ___ ________ ______ _______ __________ ______ ____.
_____ _______ ______ _______ _______ __________.
_________ ________ ________ __________ ______ _________ ____ ________ ______ _________ ____ _________.
_______ ___ ______ ___ __________ _______ ____ ___ _____ ____.
_______ ________ ________ ________ ___ ________ ________ ____.
_______ __________ ______ ____ _________ _______ _________ _________ ____ ______.
________ _______ _____ __________ _______ ________ _______ ________ _________ ____ ______ ________.
________ ________ ____.
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