A Student Has 3 Exams

A student has 3 exams.The probability that he does "well" on his first exam is 80%.However,his performance on the remaining two exams depends on how "well" he did on the previous exam.The probability of doing "well" on an exam is 95% if the previous exam was done "well",but only 50% if the previous was not done "well".What is the probability he does "well" on exactly 2 of his 3 exams?

A) 15.3%
B) 27.8%
C) 32.7%
D) 38.4%

Correct Answer:

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