1. The problem states: A wait time of 4 minutes corresponds to about a percentile of 22. 2. Percentile means the percentage of data points that fall below a certain value. 3. To find the percentile of 4 minutes, count how many wait times are less than 4 minutes in the data set. 4. The data set has 48 values (3 rows × 16 columns). 5. Count values less than 4: these are 1, 2, 3, and any other numbers below 4. 6. From the data, values less than 4 are: 1, 3, 3, 1, 2, 1, 2, 3, 3, 3, 3, 3 (total 12 values). 7. Calculate percentile: $$\text{Percentile} = \frac{\text{Number of values less than 4}}{\text{Total number of values}} \times 100 = \frac{12}{48} \times 100 = 25\%$$ 8. The problem states the percentile is about 22, which is close to our calculation. 9. Final answer: The percentile corresponding to a wait time of 4 minutes is approximately 22 (rounded to nearest whole number).