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There are 10 multiple choice question, each having 4 possible answers. A candidate decides to tick the answers in random to all questions. What is the probability that he scored 6/10 .

There are 10 multiple choice question, each having 4 possible answers. A candidate decides to tick the answers in random to all questions. What is the probability that he scored 6/10 .

Grade:12th pass

1 Answers

Chandan
121 Points
6 years ago
As every ques has one correct answer and student has got 6/10
he must have got 6 answers correct
6 answers can be chosen in 10cways*probablity of correct answer6
=10c6*(1/4)6

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