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21-03-2018
Mathematics

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Elliot is taking a four question multiple choice test. Each question has four possible answers. He is going to completely guess on each question and he will get 5 points for every correct answer and lose two points for every incorrect answer. How many points can he expect to earn on the test (round to the nearest whole number)?

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21-03-2018

-1 points, because probality is that he will get 1 correct, giving him 5 points, but he will probably get 3 wrong, taking away 6 points. 5-6 equals -1

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