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Find the expected number of correct answers to this test

A multiple choice test consists of 10 questions. Each question has 2 possible answers of which only one is correct. A student guesses on every question. Find the expected number of correct answers to this test from just guessing. Do your calculations with many decimal places (at least 4), but round your answer to 2 decimal places.

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Business Management: Find the expected number of correct answers to this test

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