Afair number cube with faces numbered 1 through 6 was rolled 50 times. the cube landed with the number 2 up 10 times

Each time its rolled it has a 1/6 chance of rolling a two. Out of 50, it should come up as 2 about 8.33 percent of the time. That is the theoretical probability. However, it came up as two 10 of the 50 times, or 20 percent. The difference is about 11.67