Answer: B, 6
You can infer that 6 is the mean, because, for one, it's in the middle and has the most numbers. Also, when you work it out mathematically. The mean is the average. So, you would write out all of the numbers listed, and how much of each number there is from least to greatest. Then, you would cross one out
in the front of the line, and the back. You should get 6.