Question 3 Consider a sequence of random variables X1, X2,.. Suppose X follows a discrete distri- bution taking two possible values {0, n²}, with P(X,=0) = 1 – and P(X, = n²) = . (а) Calculate E(Xn). What happens to E(Xn) as n → 0? (b) Does X, converge in probability to some real number? If so, find that number and prove. If not, explain.

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Question 3
Consider a sequence of random variables X1, X2,.... Suppose X follows a discrete distri-
bution taking two possible values {0, n²}, with P(X,=0) = 1 – and P(X, = n²) = !.
(а)
Calculate E(Xn). What happens to E(Xn) as n → 0?
(b)
and prove. If not, explain.
Does X, converge in probability to some real number? If so, find that number
Transcribed Image Text:Question 3 Consider a sequence of random variables X1, X2,.... Suppose X follows a discrete distri- bution taking two possible values {0, n²}, with P(X,=0) = 1 – and P(X, = n²) = !. (а) Calculate E(Xn). What happens to E(Xn) as n → 0? (b) and prove. If not, explain. Does X, converge in probability to some real number? If so, find that number
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