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(a) What type of probability distribution describes X?
Asked Sep 16, 2010, 09:20 PM
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2 Answers The examination to qualify for first round of accountancy accreditation is based on a multiple choice Test. Suppose there are 10 questions on the test, each with 4 possible answers, with only one answer Being correct. Let X be the random variable for number of correct answers for someone who guesses |
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| I would say a binomial distribution. Each question is independent of the other. Knowing one will not cause you to know another one, or don't know another one. The probability of getting correct or wrong in each question is the same, 1/4 and 3/4 respectively. There is a definite number of events, in this case 10. | ||||
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