Ted wanted to compare theoretical probablity to experimental probability. He rolled two standard 6 sided dice 50 times, and got a sum of nine a total of 11 times. Calculate the experimental probability of rolling a sum of nine with two standard dice.
To calculate the experimental probability, you would divide the number of times the desired outcome occurred by the total number of trials.
Experimental Probability = Number of times desired outcome occurred / Total number of trials
In this case, the number of times Ted rolled a sum of nine with two dice is 11, and the total number of trials is 50.
Experimental Probability = 11 / 50 = 0.22
Therefore, the experimental probability of rolling a sum of nine with two standard dice is 0.22 or 22%.