We consider a Bayesian network with 10 random variables. We only know that 5 of the variables are isolated from the other 5. What are the number of parameters required to represent the joint distribution? Group of answer choices 1. 2*5=10 2. 2^5-1 = 31 3. 2(2^5-1) = 62 4. 2^10-1=1-23.