2. You have three six-sided dice. Whenall three dice are rolled at the same time, calculate the probability of the following outcomes:

c. The total number of spots showing is less than 7

ANSWER:

P[3 total] + P[4 total] + P[5 total] + P[6 total] =

= P[1,1,1] + P[1,1,2] + P[1,1,3] + P[1,2,2] + P[1,1,4] + P[1,2,3] + P[2,2,2]

20*1/6*1/6*1/6 = 20/216 =5/54=0.0926 =9.26%

can someone please explain how to do this