A Multiple-Choice Test Has 28 Questions and 3 Choices for Each

Multiple Choice

A multiple-choice test has 28 questions and 3 choices for each question. If a student is totally unprepared and guesses on each question, what is the probability that she will answer 15 questions correctly? Round your answer to four decimal places. ​

A) 0.0067
B) 0.0134
C) 0.0089
D) 0.0149
E) 0.0206