RateMyProfessor Vs. Reality

<p>can someone tell me if this scale is correct?</p>

<p>4.0 - A+, A
3.7 - A-
3.3 - B+
3.0 - B
2.7 - B- ?
2.3 - C+
2.0 - C
1.7 - C-
1.5 - D ?
1.0 - F ?</p>