A Professor Records the Grades for His Class of Students

Multiple Choice

A professor records the grades for his class of students.He finds that the probability that a student earns an A is p = .14;earns a B is p = .36;earns a C is p = .32;earns a D is p = .10;and earns an F is p = .08.What is the probability that a student earns a B or better in this class?

A) .36
B) .14
C) .86
D) .50