Question 665579
	
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Hi,
the idea is too check to see if:
1) the probabilites in @ case total 1
2) there is no negative probabilities listed as an option

A   1/5 + 5/12 + 1/3 + 1/6 = 12/60 + 25/60 + 20/60 + 10/60 = 67/60 &#8800; 1
B   0.2 + 2/5 + 0.3 = 2/10 + 4/10 + 3/10 = 9/10 &#8800;  1
C   P(x)is   -0.1  not possible... cannot have a 'negative' probability