A student takes a 10 question true-false quiz. Because the student had such a busy schedule, he or she could not study a

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answerhappygod
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A student takes a 10 question true-false quiz. Because the student had such a busy schedule, he or she could not study a

Post by answerhappygod »

A student takes a 10 question true-false quiz. Because the
student had such a busy
schedule, he or she could not study and randomly and independently
guesses at each answer by tossing a
fair coin.
(a) What is the probability of the student guessing all the answers
correctly?
(b) What is the probability of the student guessing at least 2
answers correctly?
(c) What is the expected number of correct answers that the student
gets?
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