Question
Statistics Question on Univariate Distributions
Let X1 and X2 be two independent and identically distributed discrete random variables having the probability mass function
f(x)={(21)x, 0,x=1,2,3,...otherwise.
Then P(min{X1 , X2} ≥ 5) equals
A
2561
B
5121
C
641
D
2569
Answer
2561
Explanation
Solution
The correct option is (A) : 2561.