Dice sum probability

What is the probability that a roll of three dice will result in a number less than 7?

Final Answer:

p =  0.4375

Step-by-step explanation:

s1=1+1+1=3 s2=2+1+1=4 s3=3+1+1=5 s4=4+1+1=6  s5=2+2+1=5 s6=3+2+1=6  s7=2+3+1=6  n=7  a=1+1+1=3 b=6+6+6=18  m=ba+1=183+1=16 p=mn=167=0.4375



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