Thirty students took a calculus exam. Of the students who passed the exam, 8 students earned an A, 9 earned a B, 6 earned a C, a
nd 3 earned a D. If a single student is randomly chosen, what is the probability that the student did NOT pass the exam? Provide the final answer as a fraction.
The calculator returns an error as the answer for the inverse sine of 1.055 because the acceptable range for sine is only from 0 to 1.00 in which 1.055 is clearly greater than. This is also the same as for the cosine values.