The set of all possibilities is called sample space and is denoted by S.
So, S = {NBD, NDB, BDN, BND, DBN, DNB} and n(S) = 8
and we need to find the probability of NBD
E = {NBD} and n(E) = 1
The probability of an even is defined by p(E) = 
Hence,  p(E) = 
 
        
             
        
        
        
Answer:
those are pretty good! all a's and b's are good! Keep up the good work!!
Step-by-step explanation:
 
        
             
        
        
        
Answer:
thanks for the points bye bye for now
Step-by-step explanation:
thanks for the points bye bye for now love u