To find the experimental probability of rolling a 2 or 3, we first need to determine the total number of times a 2 or a 3 was rolled.
The number of times a 2 was rolled = 13 The number of times a 3 was rolled = 9
Total rolls of 2 or 3 = 13 + 9 = 22
Next, we calculate the experimental probability of rolling a 2 or a 3 by dividing the number of times 2 or 3 was rolled by the total number of rolls:
\[ \text{Experimental Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of trials}} = \frac{22}{72} \]
Now, simplify the fraction:
\[ \frac{22}{72} = \frac{11}{36} \]
Next, we convert this fraction to a percentage:
\[ \frac{11}{36} \approx 0.3056 \]
To convert to a percentage, multiply by 100:
\[ 0.3056 \times 100 \approx 30.56% \]
Rounding to the nearest whole percent:
\[ 31% \]
Thus, the experimental probability of rolling a 2 or 3, to the nearest whole percent, is 31%.