If you toss a pair of dice 1,000 times, how many times would you expect to get a sum of 12 as the result?
1.)about 12 times 2.)about 27 times 3.)about 36 times 4.)about 100 times the lesson doesn't show me how to work this. whats the formula?

If you toss a pair of dice 1,000 times, how many times would you expect to get a sum of 12 as the result. When you toss a die there is 1/6 probility that you will get 6 so if you toss another die the probability is the same. The get a sum of 12 the probability is 1/36.

So if you toss 1000 times,

You will get about 1000 (1/36) = 27 times