The formula to estimate a tutor rate is:
\[ \text{TR} = 25 \times EL \]
Where:
A tutor rate is defined as the total cost per hour that a tutor charges for their services of teaching students one-on-one. When group tutoring occurs, the rate should be less than in one-on-one situations.
Let's consider an example:
Using the formula to calculate the tutor rate:
\[ \text{TR} = 25 \times 2 = 50 \text{ dollars per hour} \]
This means that the tutor rate for this scenario is $50 per hour.