A student takes a 10 question true-false quiz. Because the student had such a busy schedule, he or she could not study a
Posted: Wed May 11, 2022 2:03 pm
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?
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?