10.3 Calculating the Empirical Probability

Empirical Probability is based on experience or historical data to determine the likelihood of outcomes. It is calculated by determining the relative frequency. You will calculate the observed probabilities of the outcomes Heads and Tails you simulated.

To calculate the relative frequency of an outcome, calculate the number of times the outcomes appear divided by the total number of all outcomes.

1. Enter the label Rel Freq in cell E1.
2. In cell E2, enter = D2/30.
3. In cell E3, enter = D3/30.
4. Select the cells E2 and E3 and go to the Home tab, and then adjust the results to have four (4) decimal places in the Number ribbon.