Consider a multiple choice exam with 6 questions, and with 5 possible answers to each question (labeledA,B,C,D,andE).

This question has two parts:

(a) What is the probability of getting at least one question correct, just by guessing? Write your answer as a mathematical expression that shows your understanding (not as a single number in decimal form).

(b) What is the probability of getting at least one question incorrect, just by guessing? Write your answer as a mathematical expression that shows your understanding (not as a single number in decimal form).