Wednesday, February 10, 2010

There are 10 questions on a true or false test. A student feels unprepared for this test and randomly guesses?

What is the probability that the student gets exactly 7 correct?There are 10 questions on a true or false test. A student feels unprepared for this test and randomly guesses?
The student is damn lucky..There are 10 questions on a true or false test. A student feels unprepared for this test and randomly guesses?
i think you would put in 10C7 into your calculator


then that'll be your answer
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