I think it's nCk which the total of socks would be 12 since we have 6 whites and 6 black. you would have to choose 2. in that case order does not matter and we use the combination formula 12C2 = 66 possible ways.
"I want to stay for dessert, but I have to take an exam tomorrow morning"
First, you must determine how many tickets are possible. In your state, the lottery balls have the numbers 1-46 on them and you must pick 6 numbers. a. Determine how many possible tickets exist for your state lottery. b. Now, you need to come up with a plan to buy all those ti...