Step 1: Simulate rolling three dice 100 times each in a spreadsheet. The easiest way to do this is to make 3 columns, one for each individual die and have 100 rows of randomly generated values.Add a 4th column that sums all three dice values in each trial.

Step 2: To begin, make a frequency distribution table. There will be two columns in the table. The first column contains the individual values 3 through 18; you must manually generate this column. The frequency of observation for each of the values is shown in the second column.

Step 3: Compare the probability distribution that is below, to the table in step 2.

. Probability of a sum of 3: 1/216 = 0.5% . Probability of a sum of 4: 3/216 = 1.4% . Probability of a sum of 5: 6/216 = 2.8% . Probability of a sum of 6: 10/216 = 4.6% . Probability of a sum of 7: 15/216 = 7.0% . Probability of a sum of 8: 21/216 = 9.7% . Probability of a sum of 9: 25/216 = 11.6% . Probability of a sum of 10: 27/216 = 12.5% * Probability of a sum of 11: 27/216 = 12.5% . Probability of a sum of 12: 25/216 = 11.6% . Probability of a sum of 13: 21/216 = 9.7% . Probability of a sum of 14: 15/216 = 7.0% . Probability of a sum of 15: 10/216 = 4.6% . Probability of a sum of 16: 6/216 = 2.8% . Probability of a sum of 17: 3/216 = 1.4% . Probability of a sum of 18:1/216 = 0.5%