Question 972891
Explain why this is or is not a probability distribution.
x	1	2	3	4
P(x)	0.4	0.3	0.4	-0.1 
Answer: This is NOT a probability distribution because P(X=4) = -0.1 < 0 which is not possible in a probability distribution. The probability of any event should be between 0 and 1 (inclusive).