To find the approximate frequency of rolling a 2 on a number cube (which has faces numbered from 1 to 6), we first determine the probability of rolling a 2. The probability of rolling any specific number (including 2) is:
\[ P(rolling , a , 2) = \frac{1}{6} \]
Next, we can calculate the expected frequency of rolling a 2 in 350 attempts by multiplying the total number of rolls by the probability of rolling a 2:
\[ \text{Expected frequency} = 350 \times P(rolling , a , 2) = 350 \times \frac{1}{6} \approx 58.33 \]
Since we're looking for two values that represent an approximate frequency of rolling a 2, we can round this number. The reasonable options could be around 58 and 59.
Therefore, the two values representing an approximate frequency of rolling a 2 in 350 attempts are 58 and 59.