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A box contains 10 flash drives. 5 flash drives are second hand and contain data.
2 flash drives a randomly chosen from the box. X is equal to 1
if at least one of the flash drives chosen already contains data, otherwise X is 0.
What distribution is this and what are the parameters?
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X = 0, if both selected flash drives are second hand.
The probability for it is P(X=0) = = = .
Otherwise, X = 1 with the probability P(X=1) = 1 - = .
It is the binomial distribution probability: n= 1 (the number of trials);
p= for X= 0 (successful trial) and p= for X= 1 (unsuccessful trial).
Solved.