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On a multiple choice examination with three possible answers ( out of which only one is correct ) for each of the five questions, what is the probability that the candidate would get four or more correct answers just by guessing?
cbse
class12
modelpaper
2009
sec-b
q16
math
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asked
Dec 21, 2012
by
thanvigandhi_1
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On a multiple choice examination with three possible answers for each of the five questions, what is the probability that a candidate would get four or more correct answers just by guessing ?
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A multiple choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just by guessing is :
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The probability of guessing correctly atleast 8 out of 10 answers on a true - false examination is :
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The probability of guessing correctly at least 8 out of 10 answers on a true-false type examination is
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True-or-False:A candidate is required to answer 7 questions out of 12 questions which are divided into two groups,each containing 6 questions. He is not permitted to attempt more than 5 questions from either group. He can choose the seven questions in 650 ways.
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