Question 1179830: A test has 3 true/false questions and 4 multiple choice questions
a) How many different ways can this test be answered if each question is answered?
b) If a person guesses an answer for each question, what is the probability that he answers each question correctly?
c) If a person guesses an answer for each question, what is the probability that he answers them all wrong?
Answer by ikleyn(52864)   (Show Source):
You can put this solution on YOUR website! .
A test has 3 true/false questions and 4 multiple choice questions.
a) How many different ways can this test be answered if each question is answered?
b) If a person guesses an answer for each question, what is the probability that he answers each question correctly?
c) If a person guesses an answer for each question, what is the probability that he answers them all wrong?
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As it is worded, printed, posted and presented, the problem is posed INCORRECTLY.
It missed to define the number of answers of each multiple choice questions.
Do not forget to post your "THANKS" to me for noticing the fault in your problem formulation.
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