Students get two grades for a test in an introductory psychology course: a letter grade, and a numerical equivalent (weighted value). So an A is worth 4 points, a B is worth 3 points, a C is worth 2 points, a D is worth 1 point, and an F is worth O points. The results for the test are listed in the table below. Score Number of students 11 18 52 13 6 Using the numerical equivalents (weighted values), what is the average grade for this test? Rounded to the nearest hundredth, the average grade is