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A test had 200 questions .Each correct answer carried 2 marks.Each wrong answer carried 1/2 marks and unanswered question fetched no marks .Ajay attempted all the question in the test and he scored 360 marks.What would his marks
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On a truefalse test, each question has exactly one correct answer: true, or false. A student knows the correct answer to 70% of the questions on the test. Each of the remaining answers she guesses at random, independently of all
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test consists of 10 multiple choice questions with five choices for each question. As an experiment, you GUESS on each and every answer without even reading the questions. What is the probability of getting exactly 7 questions
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A multiple choice test consists of eight questions, each of which has five choices. Each question has exactly one correct answer. William guesses randomly at each answer. What is the probability that he gets six or fewer questions
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I am doing something wrong when I work this question. Can someone show me the steps. I have the answer. x
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